10-K 1 cff4.txt CORNERSTONE FUND 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K [X] Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 [No Fee Required] For the year ended December 31, 2001 or [ ] Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 [No Fee Required] For the transition period from ________________to___________________ Commission File Number 0-15442 DEAN WITTER CORNERSTONE FUND IV (Exact name of registrant as specified in its Limited Partnership Agreement) NEW YORK 13-3393597 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) Demeter Management Corporation c/o Managed Futures Department 825 Third Avenue, 8th Floor, New York, NY 10022 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (201) 876-4647 Securities registered pursuant to Section 12(b) of the Act: Name of each exchange Title of each class on which registered None None Securities registered pursuant to Section 12(g) of the Act: Units of Limited Partnership Interest (Title of Class) Indicate by check-mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes X No _____ Indicate by check-mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (section 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment of this Form 10-K. [X] State the aggregate market value of the Units of Limited Partnership Interest held by non-affiliates of the registrant. The aggregate market value shall be computed by reference to the price at which units were sold as of a specified date within 60 days prior to the date of filing: $102,051,251 at January 31, 2002. DOCUMENTS INCORPORATED BY REFERENCE (See Page 1) DEAN WITTER CORNERSTONE FUND IV INDEX TO ANNUAL REPORT ON FORM 10-K DECEMBER 31, 2001

DOCUMENTS INCORPORATED BY REFERENCE Portions of the following documents are incorporated by reference as follows: Documents Incorporated Part of Form 10-K Partnership's Prospectus dated August 28, 1996 together with the Supplement to the Prospectus dated May 14, 1999 I Annual Report to the Dean Witter Cornerstone Funds II, III, and IV Limited Partners for the year ended December 31, 2001 II, III & IV PART I Item 1. BUSINESS (a) General Development of Business. Dean Witter Cornerstone Fund IV (the "Partnership") is a New York limited partnership organized to engage in the speculative trading of futures contracts, options on futures contracts and forward contracts on foreign currencies. The Partnership commenced operations on May 1, 1987. The Partnership is one of the Dean Witter Cornerstone Funds, comprised of Dean Witter Cornerstone Fund II, Dean Witter Cornerstone Fund III, and the Partnership. The general partner is Demeter Management Corporation ("Demeter"). The non-clearing commodity broker is Morgan Stanley DW Inc. The clearing commodity brokers are Morgan Stanley & Co. Incorporated ("MS & Co.") and Morgan Stanley & Co. International Limited ("MSIL"). Demeter, Morgan Stanley DW, MS & Co. and MSIL are wholly-owned subsidiaries of Morgan Stanley Dean Witter & Co. ("MSDW"). The trading managers to the Partnership are John W. Henry & Company, Inc. and Sunrise Capital Management, Inc. (collectively, the "Trading Managers"). Effective April 2, 2001, Dean Witter Reynolds Inc. changed its name to Morgan Stanley DW Inc. The Partnership's net asset value per unit of limited partnership interest ("Unit(s)") at December 31, 2001 was $6,228.94, representing an increase of 15.9 percent from the net asset value per Unit of $5,373.69 at December 31, 2000. For a more detailed description of the Partnership's business, see subparagraph (c). (b) Financial Information about Segments. For financial information reporting purposes the Partnership is deemed to engage in one industry segment, the speculative trading of futures, forwards and options. The relevant financial information is presented in Items 6 and 8. (c) Narrative Description of Business. The Partnership is in the business of speculative trading of futures, forwards and options pursuant to trading instructions provided by the Trading Managers. For a detailed description of the different facets of the Partnership's business, see those portions of the Partnership's prospectus, dated August 28, 1996 (the "Prospectus"), together with the supplement to the Prospectus dated May 14, 1999 (the "Supplement") incorporated by reference in this Form 10-K, set forth below. Facets of Business 1. Summary 1. "Summary of the Prospectus" (Pages 1-9 of the Prospectus and Page S-19 of the Supplement). 2. Commodities Market 2. "The Commodities Market" (Pages 80-84 of the Prospectus). 3. Partnership's Commodity 3. "Investment Programs, Use Trading Arrangements and of Proceeds and Trading Policies Policies" (Pages 45-47 of the Prospectus) and "The Trading Managers" (Pages 51-74 of the Prospectus and Pages S-20 - S-32 of the Supplement). 4. Management of the Part- 4. "The Cornerstone Funds" nership (Pages 19-24 of the Prospectus and Pages S-2 - S-5 of the Sup- plement). "The General Partner" (Pages 77-79 of the Prospectus and Pages Pages S-32 - S-34 of the Supplement) and "The Com- modity Brokers" (Pages 79-80 of the Prospectus and Pages S-34 - S-36 of the Supplement). "The Limited Partnership Agree- ments" (Pages 86-90 of the Prospectus). 5. Taxation of the Partner- 5. "Material Federal Income ship's Limited Partners Tax Considerations" and "State and Local Income Tax Aspects" (Pages 96-99 of the Prospectus and Page S-37 of the Supplement). (d) Financial Information about Geographic Areas The Partnership has not engaged in any operations in foreign countries; however, the Partnership (through the commodity brokers) enters into forward contract transactions where foreign banks are the contracting party and trades in futures, forwards and options on foreign exchanges. Item 2. PROPERTIES The executive and administrative offices are located within the offices of Morgan Stanley DW. The Morgan Stanley DW offices utilized by the Partnership are located at 825 Third Avenue, 8th Floor, New York, NY 10022. Demeter changed its address from 2 World Trade Center, New York, NY 10048. Item 3. LEGAL PROCEEDINGS In April 2001, the Appellate Division of New York State dismissed the class action previously disclosed in the Partnership's Form 10-K for the year ended December 31, 2000. Because plaintiffs did not exercise their right to appeal any further, this dismissal constituted a final resolution of the case. Item 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS None. PART II Item 5. MARKET FOR THE REGISTRANT'S PARTNERSHIP UNITS AND RELATED SECURITY HOLDER MATTERS (a) Market Information There is no established public trading market for Units of the Partnership. (b) Holders The number of holders of Units at December 31, 2001 was approximately 5,713. (c) Distributions No distributions have been made by the Partnership since it commenced trading operations on May 1, 1987. Demeter has sole discretion to decide what distributions, if any, shall be made to investors in the Partnership. Demeter currently does not intend to make any distribution of Partnership profits. (d) Use of Proceeds The offering for the Partnership originally commenced May 31, 1984. Effective September 30, 1994, Dean Witter Cornerstone Fund II, Dean Witter Cornerstone Fund III and the Partnership were closed to new investors. Units were sold afterwards solely through "Exchanges" between existing investors within the Cornerstone Series at 100% of net asset value per Unit. Effective with the April 30, 2000 monthly closing, the exchange privilege among Cornerstone Fund II, Cornerstone Fund III and the Partnership ("Series Exchanges") was terminated. However, Limited Partners retained the ability to execute exchanges out of a Cornerstone fund into other funds outside the Cornerstone Series ("Non-Series Exchanges") subject to certain restrictions set forth in the applicable limited partnership agreements. Morgan Stanley DW pays all expenses in connection with the exchanging of Units without reimbursement and therefore, 100% of the proceeds of Exchanges are applied to the working capital of the Partnership in accordance with the "Investment Programs, Use of Proceeds and Trading Policies" section of the Prospectus. Through April 30, 2000, the Partnership had sold 100,647.397 Units and the Cornerstone Funds in aggregate had sold 235,440.601 Units. The aggregate price of Units sold by the Partnership was $168,125,690. Item 6. SELECTED FINANCIAL DATA (in dollars)

Item 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Liquidity - The Partnership deposits its assets with Morgan Stanley DW as non-clearing broker and MS & Co. and MSIL as clearing brokers in separate futures, forwards and options trading accounts established for each Trading Manager, which assets are used as margin to engage in trading. The assets are held in either non-interest bearing bank accounts or in securities and instruments permitted by the Commodity Futures Trading Commission for investment of customer segregated or secured funds. The Partnership's assets held by the commodity brokers may be used as margin solely for the Partnership's trading. Since the Partnership's sole purpose is to trade in futures, forwards and options, it is expected that the Partnership will continue to own such liquid assets for margin purposes. The Partnership's investment in futures, forwards and options may, from time to time, be illiquid. Most U.S. futures exchanges limit fluctuations in prices during a single day by regulations referred to as "daily price fluctuations limits" or "daily limits". Trades may not be executed at prices beyond the daily limit. If the price for a particular futures or options contract has increased or decreased by an amount equal to the daily limit, positions in that futures or options contract can neither be taken nor liquidated unless traders are willing to effect trades at or within the limit. Futures prices have occasionally moved the daily limit for several consecutive days with little or no trading. These market conditions could prevent the Partnership from promptly liquidating its futures or options contracts and result in restrictions on redemptions. There is no limitation on daily price moves in trading forward contracts on foreign currencies. The markets for some world currencies have low trading volume and are illiquid, which may prevent the Partnership from trading in potentially profitable markets or prevent the Partnership from promptly liquidating unfavorable positions in such markets, subjecting it to substantial losses. Either of these market conditions could result in restrictions on redemptions. The Partnership has never had illiquidity affect a material portion of its assets. Capital Resources. The Partnership does not have, nor expect to have, any capital assets. Redemptions of Units in the future will affect the amount of funds available for investment in futures, forwards and options in subsequent periods. It is not possible to estimate the amount and therefore the impact of future redemptions of Units. Results of Operations. General. The Partnership's results depend on the Trading Managers and the ability of the Trading Managers' trading programs to take advantage of price movements or other profit opportunities in the futures, forwards and options markets. The following presents a summary of the Partnership's operations for the three years ended December 31, 2001 and a general discussion of its trading activities during each period. It is important to note, however, that the Trading Managers trade in various markets at different times and that prior activity in a particular market does not mean that such market will be actively traded by the Trading Managers or will be profitable in the future. Consequently, the results of operations of the Partnership are difficult to discuss other than in the context of the Trading Managers' trading activities on behalf of the Partnership and how the Partnership has performed in the past. At December 31, 2001, the Partnership's total capital was $106,610,025, an increase of $6,991,470 from the Partnership's total capital of $99,618,555 at December 31, 2000. For the year ended December 31, 2001, the Partnership generated net income of $14,868,025 and total redemptions aggregated $7,876,555. For the year ended December 31, 2001, the Partnership recorded total trading revenues, including interest income, of $23,218,105 and posted an increase in net asset value per Unit. The most significant gains of approximately 18.3% were recorded primarily during September from previously established short positions in the South African rand as its value trended lower relative to the U.S. dollar as investors targeted the emerging market currency while global economic jitters persisted. During November and December, additional gains were recorded from previously established short positions in the South African rand as its value trended lower versus the U.S. dollar due to emerging market concerns following Argentina's debt default and political turmoil in neighboring Zimbabwe. Profits of approximately 8.2% were recorded throughout a majority of the first quarter from previously established short positions in the Japanese yen as the value of the yen weakened relative to the U.S. dollar on continuing concerns for the Japanese economy and in both anticipation and reaction to the Bank of Japan's decision to reinstate its zero interest rate policy. During December, gains were recorded from previously established short positions in the Japanese yen as the value of the yen versus the U.S. dollar continued to trend lower amid the release of weak economic data and the perception that further depreciation of the yen would not be met with government intervention in support of the currency. A portion of the Partnership's overall gains was partially offset by losses of approximately 3.7% recorded primarily during May and early June from previously established long positions in the British pound as its value weakened relative to the U.S. dollar in reaction to reports that British Prime Minister Blair will push for Great Britain's entry into the European Monetary Union. During October and November, losses were recorded from previously established long positions in the British pound as the value of the pound reversed weaker versus the U.S. dollar on pessimism generated by the Bank of England that further interest rate cuts are unlikely due to inflationary pressures in Britain. Total expenses for the year were $8,350,080, resulting in net income of $14,868,025. The net asset value of a Unit increased from $5,373.69 at December 31, 2000 to $6,228.94 at December 31, 2001. At December 31, 2000, the Partnership's total capital was $99,618,555, a decrease of $3,357,098 from the Partnership's total capital of $102,975,653 at December 31, 1999. For the year ended December 31, 2000, the Partnership generated net income of $13,474,556, total subscriptions aggregated $29,469 and total redemptions aggregated $16,861,123. For the year ended December 31, 2000, the Partnership recorded total trading revenues, including interest income, of $21,185,258 and posted an increase in net asset value per Unit. The Partnership recorded gains of approximately 12.9% from trading in the euro. During the first half of the year, short positions in the euro proved profitable as the value of the European common currency weakened versus the U.S. dollar on uncertainty regarding the European economy and speculation that European interest rates would remain unchanged. In September, however, coordinated intervention among the world's largest central banks stemmed the tide of the falling euro. Following the intervention, long positions in the euro proved profitable during the fourth quarter as its value surged versus the U.S. dollar, Japanese yen, and British pound, reflecting renewed skepticism regarding the prospects of the U.S., Japanese and British economies relative to that of the European economy. Gains of approximately 3.1% were also recorded from positions in the Swiss franc as its value often moved in line with that of the euro. Additional gains of approximately 5.4% were experienced throughout the year from short South African rand positions as its value receded relative to the U.S. dollar during April and May amid speculation that Zimbabwe was on the verge of devaluing its currency. A portion of the Partnership's gains for the year was offset by losses of approximately 7.3% experienced in the British pound primarily from long positions early in the year amid continued strength in the U.S. dollar and short positions late in the year on fresh evidence of a weakening U.S. economy. Losses of approximately 4.6% were also experienced in the Australian dollar as its value fluctuated in response to weakness in the euro, the changing U.S. interest rate environment and fading Australian interest rate expectations. Total expenses for the year were $7,710,702, resulting in net income of $13,474,556. The net asset value of a Unit increased from $4,683.42 at December 31, 1999 to $5,373.69 at December 31, 2000. At December 31, 1999, the Partnership's total capital was $102,975,653, a decrease of $12,265,446 from the Partnership's total capital of $115,241,099 at December 31, 1998. For the year ended December 31, 1999, the Partnership generated a net loss of $1,367,033, total subscriptions aggregated $46,268 and total redemptions aggregated $10,944,681. For the year ended December 31, 1999, the Partnership recorded total trading revenues, including interest income, of $6,372,723 and after expenses, posted a decrease in net asset value per Unit. Losses of approximately 6.32% were experienced primarily from trendless movement in the value of the British pound throughout a majority of the year, particularly during the second quarter. Losses of approximately 2.71% were incurred primarily from short positions in the Singapore dollar during June and December as the value of this Pacific Rim currency moved higher versus the U.S. dollar on strength in the Japanese yen. These losses were mitigated by gains of approximately 7.24% in the euro and 2.82% in the Swiss franc, recorded primarily from short positions in these currencies as their values declined versus the U.S. dollar early in the year due to the lack of economic growth in Europe and the ongoing crisis in Kosovo. Gains of approximately 4.86% were recorded primarily from long positions in the Japanese yen as the value of the yen reached a 7- 1/2 month high versus the U.S. dollar during August due to optimism regarding the Japanese economy. The Japanese yen continued to climb during September, resulting in additional gains for long positions. During the fourth quarter, long positions in the Japanese yen recorded gains as its value strengthened to a 4-year high versus the U.S. dollar following the release of optimistic Japanese economic data. Total expenses for the year were $7,739,756, resulting in a net loss of $1,367,033. The net asset value of a Unit decreased from $4,736.86 at December 31, 1998 to $4,683.42 at December 31, 1999. The Partnership's overall performance record represents varied results of trading in different futures, forwards and options markets. For a further description of 2001 trading results, refer to the letter to the Limited Partners in the accompanying Annual Report to Limited Partners for the year ended December 31, 2001, which is incorporated by reference to Exhibit 13.01 of this Form 10-K. The Partnership's gains and losses are allocated among its partners for income tax purposes. Credit Risk. Financial Instruments. The Partnership is a party to financial instruments with elements of off-balance sheet market and credit risk. The Partnership may trade futures, forwards and other commodity interests on foreign currencies. In entering into these contracts, the Partnership is subject to the market risk that such contracts may be significantly influenced by market conditions, such as interest rate volatility, resulting in such contracts being less valuable. If the markets should move against all of the positions held by the Partnership at the same time, and if the Trading Managers were unable to offset positions of the Partnership, the Partnership could lose all of its assets and investors would realize a 100% loss. In addition to the Trading Managers' internal controls, the Trading Managers must comply with the trading policies of the Partnership. These trading policies include standards for liquidity and leverage with which the Partnership must comply. The Trading Managers and Demeter monitor the Partnership's trading activities to ensure compliance with the trading policies. Demeter may require the Trading Managers to modify positions of the Partnership if Demeter believes they violate the Partnership's trading policies. In addition to market risk, in entering into futures, forwards and options contracts there is a credit risk to the Partnership that the counterparty on a contract will not be able to meet its obligations to the Partnership. The ultimate counterparty or guarantor of the Partnership for futures contracts traded in the United States and the foreign exchanges on which the Partnership trades is the clearinghouse associated with such exchange. In general, a clearinghouse is backed by the membership of the exchange and will act in the event of non-performance by one of its members or one of its member's customers, which should significantly reduce this credit risk. For example, a clearinghouse may cover a default by drawing upon a defaulting member's mandatory contributions and/or non-defaulting members' contributions to a clearinghouse guarantee fund, established lines or letters of credit with banks, and/or the clearinghouse's surplus capital and other available assets of the exchange and clearinghouse, or assessing its members. In cases where the Partnership trades off-exchange forward contracts with a counterparty, the sole recourse of the Partnership will be the forward contracts counterparty. There is no assurance that a clearinghouse, exchange, or other exchange member will meet its obligations to the Partnership, and Demeter and the commodity brokers will not indemnify the Partnership against a default by such parties. Further, the law is unclear as to whether a commodity broker has any obligation to protect its customers from loss in the event of an exchange or clearinghouse defaulting on trades effected for the broker's customers. Any such obligation on the part of a broker appears even less clear where the default occurs in a non-U.S. jurisdiction. Demeter deals with these credit risks of the Partnership in several ways. First, it monitors the Partnership's credit exposure to each exchange on a daily basis, calculating not only the amount of margin required for it but also the amount of its unrealized gains at each exchange, if any. The commodity brokers inform the Partnership, as with all their customers, of its net margin requirements for all its existing open positions, but do not break that net figure down, exchange by exchange. Demeter, however, has installed a system which permits it to monitor the Partnership's potential margin liability, exchange by exchange. As a result, Demeter is able to monitor the Partnership's potential net credit exposure to each exchange by adding the unrealized trading gains on that exchange, if any, to the Partnership's margin liability thereon. Second, the Partnership's trading policies limit the amount of its net assets that can be committed at any given time to futures contracts and require, in addition, a minimum amount of diversification in the Partnership's trading, usually over several different products. One of the aims of such trading policies has been to reduce the credit exposure of the Partnership to a single exchange and, historically, the Partnership's exposure to any one exchange has typically amounted to only a small percentage of its total net assets. On those relatively few occasions where the Partnership's credit exposure may climb above that level, Demeter deals with the situation on a case by case basis, carefully weighing whether the increased level of credit exposure remains appropriate. Material changes to the trading policies may be made only with the prior written approval of the Limited Partners owning more than 50% of Units then outstanding. Third, with respect to forward contract trading, the Partnership trades with only those counterparties which Demeter, together with Morgan Stanley DW, have determined to be creditworthy. The Partnership presently deals with MS & Co. as the sole counterparty on forward contracts. Inflation has not been a major factor in the Partnership operations. See "Financial Instruments" under Notes to Financial Statements in the Partnership's Annual Report to Limited Partners for the year ended December 31, 2001, which is incorporated by reference to Exhibit 13.01 of this Form 10-K. Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK Introduction The Partnership is a commodity pool engaged primarily in the speculative trading of futures, forwards and options. The market- sensitive instruments held by the Partnership are acquired for speculative trading purposes only and, as a result, all or substantially all of the Partnership's assets are at risk of trading loss. Unlike an operating company, the risk of market- sensitive instruments is central, not incidental, to the Partnership's main business activities. The futures, forwards and options traded by the Partnership involve varying degrees of related market risk. Market risk is often dependent upon changes in the level or volatility of interest rates, exchange rates, and prices of financial instruments and commodities. Fluctuations in market risk based upon these factors result in frequent changes in the fair value of the Partnership's open positions, and, consequently, in its earnings and cash flow. The Partnership's total market risk is influenced by a wide variety of factors, including the diversification among the Partnership's open positions, the volatility present within the markets, and the liquidity of the markets. At different times, each of these factors may act to increase or decrease the market risk associated with the Partnership. The Partnership's past performance is not necessarily indicative of its future results. Any attempt to numerically quantify the Partnership's market risk is limited by the uncertainty of its speculative trading. The Partnership's speculative trading may cause future losses and volatility (i.e. "risk of ruin") that far exceed the Partnership's experiences to date or any reasonable expectations based upon historical changes in market value. Quantifying the Partnership's Trading Value at Risk The following quantitative disclosures regarding the Partnership's market risk exposures contain "forward-looking statements" within the meaning of the safe harbor from civil liability provided for such statements by the Private Securities Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934). All quantitative disclosures in this section are deemed to be forward- looking statements for purposes of the safe harbor, except for statements of historical fact. The Partnership accounts for open positions on the basis of mark- to-market accounting principles. Any loss in the market value of the Partnership's open positions is directly reflected in the Partnership's earnings, whether realized or unrealized, and its cash flow. Profits and losses on open positions of exchange- traded futures, forwards and options are settled daily through variation margin. The Partnership's risk exposure in the market sectors traded by the Trading Managers is estimated below in terms of Value at Risk ("VaR"). The VaR model used by the Partnership includes many variables that could change the market value of the Partnership's trading portfolio. The Partnership estimates VaR using a model based upon historical simulation with a confidence level of 99%. Historical simulation involves constructing a distribution of hypothetical daily changes in the value of a trading portfolio. The VaR model takes into account linear exposures to price and interest rate risk. Market risks that are incorporated in the VaR model include equity and commodity prices, interest rates, foreign exchange rates, and correlation among these variables. The hypothetical changes in portfolio value are based on daily percentage changes observed in key market indices or other market factors ("market risk factors") to which the portfolio is sensitive. The historical observation period of the Partnership's VaR is approximately four years. The one-day 99% confidence level of the Partnership's VaR corresponds to the negative change in portfolio value that, based on observed market risk factors, would have been exceeded once in 100 trading days. VaR models, including the Partnership's, are continuously evolving as trading portfolios become more diverse and modeling techniques and systems capabilities improve. Please note that the VaR model is used to numerically quantify market risk for historic reporting purposes only and is not utilized by either Demeter or the Trading Managers in their daily risk management activities. The Partnership's Value at Risk in Different Market Sectors The following table indicates the VaR associated with the Partnership's open positions as a percentage of total net assets by primary market risk category at December 31, 2001 and 2000. At December 31, 2001 and 2000, the Partnership's total capitalization was approximately $107 million and $100 million, respectively. Primary Market December 31, 2001 December 31, 2000 Risk Category Value at Risk Value at Risk Currency (2.97)% (2.51)% The table above represents the VaR of the Partnership's open positions at December 31, 2001 and 2000 only and is not necessarily representative of either the historic or future risk of an investment in the Partnership. Because the Partnership's only business is the speculative trading of futures, forwards and options, the composition of its trading portfolio can change significantly over any given time period, or even within a single trading day. Any changes in open positions could positively or negatively materially impact market risk as measured by VaR. The table below supplements the December 31, 2001 VaR by presenting the Partnership's high, low and average VaR, as a percentage of total net assets for the four quarterly reporting periods from January 1, 2001 through December 31, 2001. Primary Market Risk Category High Low Average Currency (2.97)% (2.18)% (2.70)% Limitations on Value at Risk as an Assessment of Market Risk The face value of the market sector instruments held by the Partnership is typically many times the applicable margin requirements. Margin requirements generally range between 2% and 15% of contract face value. Additionally, the use of leverage causes the face value of the market sector instruments held by the Partnership to typically be many times the total capitalization of the Partnership. The value of the Partnership's open positions thus creates a "risk of ruin" not usually found in other investments. The relative size of the positions held may cause the Partnership to incur losses greatly in excess of VaR within a short period of time, given the effects of the leverage employed and market volatility. The VaR tables above, as well as the past performance of the Partnership, give no indication of such "risk of ruin". In addition, VaR risk measures should be viewed in light of the methodology's limitations, which include the following: ? past changes in market risk factors will not always result in accurate predictions of the distributions and correlations of future market movements; ? changes in portfolio value caused by market movements may differ from those of the VaR model; ? VaR results reflect past trading positions while future risk depends on future positions; ? VaR using a one-day time horizon does not fully capture the market risk of positions that cannot be liquidated or hedged within one day; and ? the historical market risk factor data used for VaR estimation may provide only limited insight into losses that could be incurred under certain unusual market movements. The VaR tables above present the results of the Partnership's VaR for the Partnership's market risk exposure at December 31, 2001 and 2000, and for the end of the four quarterly reporting periods during calendar year 2001. Since VaR is based on historical data, VaR should not be viewed as predictive of the Partnership's future financial performance or its ability to manage or monitor risk. There can be no assurance that the Partnership's actual losses on a particular day will not exceed the VaR amounts indicated above or that such losses will not occur more than once in 100 trading days. Non-Trading Risk The Partnership has non-trading market risk on its foreign cash balances not needed for margin. These balances and any market risk they may represent are immaterial. At December 31, 2001, the Partnership's cash balance at Morgan Stanley DW was approximately 95% of its total net asset value. A decline in short-term interest rates will result in a decline in the Partnership's cash management income. This cash flow risk is not considered to be material. Materiality, as used throughout this section, is based on an assessment of reasonably possible market movements and any associated potential losses taking into account the leverage, optionality and multiplier features of the Partnership's market- sensitive instruments, in relation to the Partnership's net assets. Qualitative Disclosures Regarding Primary Trading Risk Exposures The following qualitative disclosures regarding the Partnership's market risk exposures - except for (A) those disclosures that are statements of historical fact and (B) the descriptions of how the Partnership manages its primary market risk exposures - constitute forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act. The Partnership's primary market risk exposure as well as the strategies used and to be used by Demeter and the Trading Managers for managing such exposures are subject to numerous uncertainties, contingencies and risks, any one of which could cause the actual results of the Partnership's risk controls to differ materially from the objectives of such strategies. Government interventions, defaults and expropriations, illiquid markets, the emergence of dominant fundamental factors, political upheavals, changes in historical price relationships, an influx of new market participants, increased regulation and many other factors could result in material losses as well as in material changes to the risk exposures and the risk management strategies of the Partnership. Investors must be prepared to lose all or substantially all of their investment in the Partnership. The following was the primary trading risk exposure of the Partnership at December 31, 2001. It may be anticipated, however, that market exposure will vary materially over time. Currency. The Partnership's currency exposure at December 31, 2001 was to exchange rate fluctuations, primarily fluctuations which disrupt the historical pricing relationships between different currencies and currency pairs. Interest rate changes as well as political and general economic conditions influence these fluctuations. The Partnership trades in a large number of currencies. At December 31, 2001, the Partnership's major exposures were to outright U.S. dollar positions. Outright positions consist of the U.S. dollar vs. other currencies. These other currencies include major and minor currencies. Demeter does not anticipate that the risk profile of the Partnership's currency sector will change significantly in the future. The currency trading VaR figure includes foreign margin amounts converted into U.S. dollars with an incremental adjustment to reflect the exchange rate risk inherent to the dollar-based Partnership in expressing VaR in a functional currency other than dollars. Qualitative Disclosures Regarding Non-Trading Risk Exposure At December 31, 2001, there was no non-trading risk exposure because the Partnership did not have any foreign currency balances. Qualitative Disclosures Regarding Means of Managing Risk Exposure The Partnership and the Trading Managers, separately, attempt to manage the risk of the Partnership's open positions in essentially the same manner in all market categories traded. Demeter attempts to manage market exposure by diversifying the Partnership's assets among different Trading Managers, each of whose strategies focus on different market sectors and trading approaches, and monitoring the performance of the Trading Managers daily. In addition, the Trading Managers establish diversification guidelines, often set in terms of the maximum margin to be committed to positions in any one market sector or market-sensitive instrument. Demeter monitors and controls the risk of the Partnership's non- trading instrument, cash. Cash is the only Partnership investment directed by Demeter, rather than the Trading Managers. Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA The Financial Statements are incorporated by reference to the Partnership's Annual Report which is filed as Exhibit 13.01 hereto. Supplementary data specified by Item 302 of Regulation S-K:

Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None. PART III Item 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT There are no directors or executive officers of the Partnership. The Partnership is managed by Demeter. Directors and Officers of the General Partner The directors and officers of Demeter are as follows: Robert E. Murray, age 41, is the Executive Director of Morgan Stanley DW's Managed Futures Department, a leading commodity pool operator with approximately $1.4 billion in assets across a variety of U.S. and international public and private managed futures funds. In this capacity, Mr. Murray is responsible for overseeing all aspects of Morgan Stanley DW's Managed Futures Department. Mr. Murray began at Dean Witter in 1984 and has been closely involved in the growth of managed futures at the firm over the last 17 years. He is also the Chairman and President of Morgan Stanley Futures & Currency Management Inc. ("MSFCM") (formerly known as Dean Witter Futures & Currency Management Inc.), Morgan Stanley's internal commodity trading advisor, and is Chairman and President of Demeter Management Corporation, the entity which acts as a general partner for Morgan Stanley DW's managed futures funds. Mr. Murray has served as the Vice Chairman and a Director of the Board of the Managed Futures Association and is currently a member of the Board of Directors of the National Futures Association. Mr. Murray received a Bachelors Degree in Finance from Geneseo State University in 1983. Mitchell M. Merin, age 48, is a Director of Demeter. Mr. Merin is also a Director of MSFCM. Mr. Merin was appointed the Chief Operating Officer of Individual Asset Management for MSDW in December 1998 and the President and Chief Executive Officer of Morgan Stanley Dean Witter Advisors in February 1998. He has been an Executive Vice President of Morgan Stanley DW since 1990, during which time he has been Director of Morgan Stanley DW's Taxable Fixed Income and Futures divisions, Managing Director in Corporate Finance and Corporate Treasurer. Mr. Merin received his Bachelors degree from Trinity College in Connecticut and his M.B.A. degree in Finance and Accounting from the Kellogg Graduate School of Management of Northwestern University in 1977. Joseph G. Siniscalchi, age 56, is a Director of Demeter. Mr. Siniscalchi joined Morgan Stanley DW in July 1984 as a First Vice President, Director of General Accounting and served as a Senior Vice President and Controller for Morgan Stanley DW's Securities Division through 1997. He is currently Managing Director, responsible for the Client Support Service Division of Morgan Stanley DW. From February 1980 to July 1984, Mr. Siniscalchi was Director of Internal Audit at Lehman Brothers Kuhn Loeb, Inc. Edward C. Oelsner, III, age 60, is a Director of Demeter. Mr. Oelsner is currently an Executive Vice President and head of the Product Development Group at Morgan Stanley Dean Witter Advisors, an affiliate of Morgan Stanley DW. Mr. Oelsner joined Morgan Stanley DW in 1981 as a Managing Director in Morgan Stanley DW's Investment Banking Department specializing in coverage of regulated industries and, subsequently, served as head of the Morgan Stanley DW Retail Products Group. Prior to joining Morgan Stanley DW, Mr. Oelsner held positions at The First Boston Corporation as a member of the Research and Investment Banking Departments from 1967 to 1981. Mr. Oelsner received his M.B.A. in Finance from the Columbia University Graduate School of Business in 1966 and an A.B. in Politics from Princeton University in 1964. Richard A. Beech, age 50, is a Director of Demeter. Mr. Beech has been associated with the futures industry for over 24 years. He has been at Morgan Stanley DW since August 1984 where he is presently an Executive Director and head of Branch Futures. Mr. Beech began his career at the Chicago Mercantile Exchange, where he became the Chief Agricultural Economist doing market analysis, marketing and compliance. Prior to joining Morgan Stanley DW, Mr. Beech also had worked at two investment banking firms in operations, research, managed futures and sales management. Raymond A. Harris, age 45, is currently Managing Director in Asset Management Services. He previously served as CAO of Morgan Stanley Dean Witter Asset Management. From July 1982 to July 1994, Mr. Harris served in financial, administrative and other assignments at Dean Witter Reynolds, Inc. and Dean Witter, Discover & Co. From August 1994 to January 1999, he worked in Discover Financial Services and the firm's Credit Service business units. Mr. Harris has been with Morgan Stanley Dean Witter & Co. and its affiliates since July 1982. He has a B.A. degree from Boston College and an M.B.A. in finance from the University of Chicago. Anthony J. DeLuca, age 39, became a Director of Demeter on September 14, 2000. Mr. DeLuca is also a Director of MSFCM. Mr. DeLuca was appointed the Controller of Asset Management for MSDW in June 1999. Prior to that, Mr. DeLuca was a partner at the accounting firm of Ernst & Young LLP, where he had MSDW as a major client. Mr. DeLuca had worked continuously at Ernst & Young LLP ever since 1984, after he graduated from Pace University with a B.B.A. degree in Accounting. Raymond E. Koch, age 46, is Chief Financial Officer of Demeter. Mr. Koch began his career at MSDW in 1988, has overseen the Managed Futures Accounting function since 1992, and is currently an Executive Director in Investment Management Controllers. From November 1979 to June 1988, Mr. Koch held various positions at Thomson McKinnon Securities, Inc. culminating as Manager, Special Projects in the Capital Markets Division. From August 1977 to November 1979 he was an auditor, specializing in financial services at Deloitte Haskins & Sells. Mr. Koch received his B.B.A. in accounting from Iona College in 1977, an M.B.A. in finance from Pace University in 1984 and is a Certified Public Accountant. All of the foregoing directors have indefinite terms. Item 11. EXECUTIVE COMPENSATION The Partnership has no directors and executive officers. As a limited partnership, the business of the Partnership is managed by Demeter, which is responsible for the administration of the business affairs of the Partnership but receives no compensation for such services. Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT (a) Security Ownership of Certain Beneficial Owners - At December 31, 2001, there were no persons known to be beneficial owners of more than 5 percent of the Units. (b) Security Ownership of Management - At December 31, 2001, Demeter owned 213.889 Units of General Partnership Interest representing a 1.25 percent interest in the Partnership. (c) Changes in Control - None Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS Refer to Note 2 - "Related Party Transactions" of "Notes to Financial Statements," in the accompanying Annual Report to Limited Partners for the year ended December 31, 2001, which is incorporated by reference to Exhibit 13.01 of this Form 10-K. In its capacity as the Partnership's retail commodity broker, Morgan Stanley DW received commodity brokerage commissions (paid and accrued by the Partnership) of $2,563,321 for the year ended December 31, 2001. PART IV Item 14.EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K (a) 1. Listing of Financial Statements The following financial statements and report of independent auditors, all appearing in the accompanying Annual Report to Limited Partners for the year ended December 31, 2001 are incorporated by reference to Exhibit 13.01 of this Form 10-K: - Report of Deloitte & Touche LLP, independent auditors, for the years ended December 31, 2001, 2000 and 1999. - Statements of Financial Condition as of December 31, 2001 and 2000. - Schedule of Investments as of December 31, 2001. - Statements of Operations, Changes in Partners' Capital, and Cash Flows for the years ended December 31, 2001, 2000 and 1999. - Notes to Financial Statements. With the exception of the aforementioned information and the information incorporated in Items 7, 8, and 13, the Annual Report to Limited Partners for the year ended December 31, 2001 is not deemed to be filed with this report. 2. Listing of Financial Statement Schedules No financial statement schedules are required to be filed with this report. (b) Reports on Form 8-K During the quarter/year ended December 31, 2001, the following Forms 8-K were filed by the Partnership: On January 3, 2001, the Partnership filed the Current Report on Form 8-K for the purpose of reporting, under Item 5, the amendment to the Partnership's management agreements with each of the Trading Managers under which the monthly management fee rate paid by the Partnership to the Trading Managers was reduced. On November 13, 2001, the Partnership filed the Current Report on Form 8-K for the purpose of reporting, under Item 5, the relocation of offices of the Partnership and Demeter; the transfer of futures and options clearing of the Partnership to MS & Co.; and the replacement by MS & Co. as counterparty on all foreign currency forward contracts for the Partnership. (c) Exhibits Refer to Exhibit Index on Pages E-1 to E-2. SIGNATURES Pursuant to the requirements of Sections 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. DEAN WITTER CORNERSTONE FUND IV (Registrant) BY: Demeter Management Corporation, General Partner March 29, 2002 BY: /s/ Robert E. Murray Robert E. Murray, Director, Chairman of the Board and President Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. Demeter Management Corporation. BY: /s/ Robert E. Murray March 29, 2002 Robert E. Murray, Director, Chairman of the Board and President /s/ Mitchell M. Merin March 29, 2002 Mitchell M. Merin, Director /s/ Joseph G. Siniscalchi March 29, 2002 Joseph G. Siniscalchi, Director /s/ Edward C. Oelsner III March 29, 2002 Edward C. Oelsner III, Director /s/ Richard A. Beech March 29, 2002 Richard A. Beech, Director /s/ Raymond A. Harris March 29, 2002 Raymond A. Harris, Director /s/ Anthony J. DeLuca March 29, 2002 Anthony J. DeLuca, Director /s/ Raymond E. Koch March 29, 2002 Raymond E. Koch, Chief Financial Officer and Principal Accounting Officer EXHIBIT INDEX Item 3.01 Limited Partnership Agreement of the Partnership, dated as of December 11, 1986, is incorporated by reference to Exhibit 3.01 the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 1987 (File No. 0- 15442). 10.01 Management Agreement among the Partnership, Demeter and John W. Henry and Co. Inc. dated as of May 1, 1987, is incorporated by reference to Exhibit 10.01 of the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 1987 (File No. 0-15442). 10.02 Management Agreement among the Partnership, Demeter and Sunrise Capital Inc. (formerly Sunrise Commodities Management Inc.) dated as of May 1, 1987, is incorporated by reference to Exhibit 10.02 of the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 1987 (File No. 0- 15442). 10.03 Dean Witter Cornerstone Funds Exchange Agreement, dated as of May 31, 1984, is incorporated by reference to Exhibit 10.04 of the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 1987 (File No. 0-15442). 10.04 Amended and Restated Customer Agreement between the Partnership and Morgan Stanley DW Inc., dated as of June 22, 2000, is incorporated by reference to Exhibit 10.01 of the Partnership's Form 8-K (File No. 0-15442) filed with the Securities and Exchange Commission on November 13, 2001. 10.05 Commodity Futures Customer Agreement between Morgan Stanley & Co. Incorporated and the Partnership, and acknowledged and agreed to by Morgan Stanley DW Inc., dated as of May 1, 2000, is incorporated by reference to Exhibit 10.02 of the Partnership's Form 8-K (File No. 0-15442) filed with the Securities and Exchange Commission on November 13, 2001. 10.06 Foreign Exchange and Options Master Agreement between Morgan Stanley & Co. Incorporated and the Partnership, dated as of April 30, 2000, is incorporated by reference to Exhibit 10.04 of the Partnership's Form 8-K (File No. 0-15442) filed with the Securities and Exchange Commission on November 13, 2001. 10.07 Securities Account Control Agreement among the Partnership, Morgan Stanley & Co. Incorporated, and Morgan Stanley DW Inc., dated as of May 1, 2000, is incorporated by reference to Exhibit 10.03 of the Partnership's Form 8-K (File No. 0- 15442) filed with the Securities and Exchange Commission on November 13, 2001. 10.08 Amendment to Management Agreement between the Partnership and John W. Henry & Company, Inc., dated as of November 30, 2000, is incorporated by reference to Exhibit 10.1 of the Partnership's Form 8-K (File No. 0-15442) filed with the Securities and Exchange Commission on January 3, 2001. 10.09 Amendment to Management Agreement between the Partnership and Sunrise Capital Management, Inc., dated as of November 30, 2000, is incorporated by reference to Exhibit 10.2 of the Partnership's Form 8-K (File No. 0-15442) filed with the Securities and Exchange Commission on January 3, 2001. 13.01 Annual Report to Limited Partners for the year ended December 31, 2001 is filed herewith. Cornerstone Funds December 31, 2001 Annual Report [LOGO] Morgan Stanley Dean Witter Cornerstone Funds Historical Fund Performance Presented below is the percentage change in Net Asset Value per Unit from the start of each calendar year each Fund has traded. Also provided is the inception-to-date return and the annualized return since inception for each Fund. PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS.

Demeter Management Corporation c/o Managed Futures Department, 825 Third Avenue, 8th Floor, New York, NY 10022 Telephone (201) 876-4647 Dean Witter Cornerstone Funds Annual Report 2001 Dear Limited Partner: This marks the seventeenth annual report for Cornerstone Funds II and III and the fifteenth for Cornerstone Fund IV. The Net Asset Value per Unit for each of the three Cornerstone Funds on December 31, 2001 was as follows:

Cornerstone Fund II During the year, the Fund posted a loss in Net Asset Value per Unit. The most significant losses were recorded in the energy markets throughout the first nine months of the year from trading in crude oil futures and its related products as a result of volatility in oil prices due to a continually changing outlook for supply, production and demand. Additional losses were incurred during October and November from long gold futures positions as prices reversed lower on the heels of sharp gains in the U.S. stock market. A portion of the Fund's overall losses was partially offset by gains recorded primarily in the currency markets throughout a majority of the fourth quarter from previously established short positions in the South African rand as its value trended lower relative to the U.S. dollar on global economic jitters. Cornerstone Fund III During the year, the Fund posted a gain in Net Asset Value per Unit. The most significant gains were recorded in the global interest rate futures markets primarily during the third quarter from long positions in U.S. interest rate futures as prices trended higher on interest rate cuts by the U.S. Federal Reserve. In the global stock index futures markets, gains were recorded primarily during September from previously established short positions in S&P 500 Index futures as equity prices moved sharply lower amid worries regarding global economic uncertainty. A majority of the Fund's overall gains was offset primarily by losses recorded throughout a majority of the fourth quarter in the energy markets from volatile price movement in natural gas futures as a result of a continually changing outlook for supply, production and demand. Cornerstone Fund IV During the year, the Fund recorded an increase in Net Asset Value per Unit. The most significant gains were recorded primarily in the South African rand from previously established short positions in September, November and December as its value trended lower relative to the U.S. dollar on global economic jitters and emerging market concerns following Argentina's debt default. Profits were recorded from previously established short positions in the Japanese yen early in the year and again in December as the value of the yen weakened relative to the U.S. dollar on continuing concerns for the Japanese economy. A portion of the Fund's overall gains was partially offset by losses recorded in the British pound primarily during May and early June from previously established long positions as its value reversed lower relative to the U.S. dollar in reaction to reports that British Prime Minister Blair would push for Great Britain's entry into the European Monetary Union. Should you have any questions concerning this report, please feel free to contact Demeter Management Corporation, c/o Managed Futures Department, 825 Third Avenue, 8th Floor, New York, NY 10022 or your Morgan Stanley Financial Advisor. I hereby affirm, that to the best of my knowledge and belief, the information contained in this report is accurate and complete. Past performance is not a guarantee of future results. Sincerely, /s/ Robert E. Murray Robert E. Murray Chairman Demeter Management Corporation General Partner Dean Witter Cornerstone Funds Independent Auditors' Report The Limited Partners and the General Partner of Dean Witter Cornerstone Fund II Dean Witter Cornerstone Fund III Dean Witter Cornerstone Fund IV: We have audited the accompanying statements of financial condition of Dean Witter Cornerstone Fund II, Dean Witter Cornerstone Fund III and Dean Witter Cornerstone Fund IV (collectively, the "Partnerships") as of December 31, 2001 and 2000, including the schedules of investments as of December 31, 2001, and the related statements of operations, changes in partners' capital, and cash flows for each of the three years in the period ended December 31, 2001. These financial statements are the responsibility of the Partnerships' management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, such financial statements present fairly, in all material respects, the financial position of Dean Witter Cornerstone Fund II, Dean Witter Cornerstone Fund III and Dean Witter Cornerstone Fund IV at December 31, 2001 and 2000 and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2001 in conformity with accounting principles generally accepted in the United States of America. /s/ Deloitte & Touche LLP New York, New York February 15, 2002 (February 27, 2002 as to Note 7) Dean Witter Cornerstone Fund II Statements of Financial Condition

Statements of Operations For the Years Ended December 31, 2001, 2000 and 1999

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Fund III Statements of Financial Condition

Statements of Operations For the Years Ended December 31, 2001, 2000 and 1999

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Fund IV Statements of Financial Condition

Statements of Operations For the Years Ended December 31, 2001, 2000 and 1999

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Funds Statements of Changes in Partners' Capital For the Years Ended December 31, 2001, 2000 and 1999

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Fund II Statements of Cash Flows

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Fund III Statements of Cash Flows

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Fund IV Statements of Cash Flows

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone II Schedule of Investments December 31, 2001 Partnership Net Assets: $22,697,736

* No single contract's value exceeds 5% of Net Assets. The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone III Schedule of Investments December 31, 2001 Partnership Net Assets: $26,294,061

The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone IV Schedule of Investments December 31, 2001 Partnership Net Assets: $106,610,025

* No single contract's value exceeds 5% of Net Assets. The accompanying notes are an integral part of these financial statements. Dean Witter Cornerstone Funds Notes to Financial Statements 1. Summary of Significant Accounting Policies Organization--Dean Witter Cornerstone Fund II ("Cornerstone II"), Dean Witter Cornerstone Fund III ("Cornerstone III"), and Dean Witter Cornerstone Fund IV ("Cornerstone IV"), (individually, a "Partnership", or collectively, the "Partnerships") are limited partnerships organized to engage in the speculative trading of futures contracts, options on futures contracts, and forward contracts on foreign currencies and other commodity interests (collectively, "futures interests"). The general partner for each Partnership is Demeter Management Corporation ("Demeter"). The non-clearing commodity broker is Morgan Stanley DW Inc. ("Morgan Stanley DW"). The clearing commodity brokers are Morgan Stanley & Co., Inc. ("MS&Co.") and Morgan Stanley & Co. International Limited ("MSIL"). Demeter, Morgan Stanley DW, MS&Co. and MSIL are wholly-owned subsidiaries of Morgan Stanley Dean Witter & Co. Effective April 2, 2001, Dean Witter Reynolds Inc. changed its name to Morgan Stanley DW Inc. Demeter is required to maintain a 1% minimum interest in the equity of each Partnership and income (losses) are shared by Demeter and the limited partners based upon their proportional ownership interests. Use of Estimates--The financial statements are prepared in accordance with accounting principles generally accepted in the United States of America, which require management to make estimates and assumptions that affect the reported amounts in the financial statements and related disclosures. Management believes that the estimates utilized in the preparation of the financial statements are prudent and reasonable. Actual results could differ from those estimates. Revenue Recognition--Futures interests are open commitments until settlement date. They are valued at market on a daily basis and the resulting net change in unrealized gains and losses is reflected in the change in unrealized profit (loss) on open contracts from one period to the next in the statements of operations. Monthly, Morgan Stanley DW pays each Partnership interest income based upon 80% of its average daily Net Assets at a rate equal to the average yield on 13-week U.S. Treasury bills issued. For purposes of such interest payments to Dean Witter Cornerstone Fund IV, Net Assets do not include monies due the Partnership on futures interests, but not actually received. Net Income (Loss) per Unit--Net income (loss) per unit of limited partnership interest ("Unit(s)") is computed using the weighted average number of Units outstanding during the period. Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) Condensed Schedule of Investments--In March 2001, the American Institute of Certified Public Accountants' Accounting Standards Executive Committee issued Statement of Position ("SOP") 01-1, "Amendment to the Scope of Statement of Position 95-2, Financial Reporting by Nonpublic Investment Partnerships, to Include Commodity Pools" effective for fiscal years ending after December 15, 2001. Accordingly, commodity pools are now required to include a condensed schedule of investments identifying those investments which constitute more than 5% of Net Assets, taking long and short positions into account separately. Equity in Futures Interests Trading Accounts--The Partnerships' asset "Equity in futures interests trading accounts," reflected in the statements of financial condition, consists of (A) cash on deposit with Morgan Stanley DW, MS&Co. and MSIL to be used as margin for trading; (B) net unrealized gains or losses on open contracts, which are valued at market and calculated as the difference between original contract value and market value, and (C) net option premiums, which represent the net of all monies paid and/or received for such option premiums. The Partnerships, in their normal course of business, enter into various contracts with MS&Co. and MSIL acting as their commodity brokers. Pursuant to brokerage agreements with MS&Co. and MSIL, to the extent that such trading results in unrealized gains or losses, these amounts are offset and reported on a net basis on the Partnerships' statements of financial condition. The Partnerships have offset the fair value amounts recognized for forward contracts executed with the same counterparty as allowable under terms of the master netting agreements with MS&Co., the sole counterparty on such contracts. The Partnerships have consistently applied their right to offset. Brokerage Commissions and Related Transaction Fees and Costs--Brokerage commissions for each Partnership are accrued at 80% of Morgan Stanley DW's published non-member rates on a half-turn basis. Related transaction fees and costs are accrued on a half-turn basis. Brokerage commissions and transaction fees combined for each Partnership are capped at 13/20 of 1% per month (a 7.8% maximum annual rate) of the adjusted Net Assets allocated to each trading program employed by the Partnerships' trading managers. Operating Expenses--Each Partnership has entered into an exchange agreement pursuant to which certain common administrative expenses (i.e., legal, auditing, accounting, filing fees and other related expenses) are shared by each of the Partnerships based upon the number of outstanding Units of each Partnership during the month in which such expenses are Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) incurred. In addition, the Partnerships incur monthly management fees and may incur incentive fees. Demeter bears all other operating expenses. Income Taxes--No provision for income taxes has been made in the accompanying financial statements, as partners are individually responsible for reporting income or loss based upon their respective share of each Partnership's revenues and expenses for income tax purposes. Distributions--Distributions, other than redemptions of Units, are made on a pro-rata basis at the sole discretion of Demeter. No distributions have been made to date. Redemptions--Limited Partners may redeem some or all of their Units at 100% of the Net Asset Value per Unit as of the last day of any month upon fifteen days advance notice by redemption form to Demeter. Exchanges--Prior to the April 30, 2000 monthly closing, Limited Partners were able to transfer their investments among the Partnerships (subject to certain restrictions outlined in the Limited Partnership Agreements) without paying additional charges. Effective with the April 30, 2000 monthly closing, the exchange privilege among the Cornerstone funds (a "Series Exchange") was terminated. However, limited partners retained the ability to execute an exchange from a Cornerstone fund into other funds outside the Cornerstone Series (a "Non-Series Exchange") subject to certain restrictions set forth in the applicable limited partnership agreements. Dissolution of the Partnerships--Each Partnership will terminate on September 30, 2025 regardless of its financial condition at such time, upon a decline in Net Assets to less than $250,000, a decline in the Net Asset Value per Unit to less than $250, or under certain other circumstances defined in each Limited Partnership Agreement. 2. Related Party Transactions Each Partnership pays brokerage commissions to Morgan Stanley DW as described in Note 1. Each Partnership's cash is on deposit with Morgan Stanley DW, MS&Co. and MSIL in futures interests trading accounts to meet margin requirements as needed. Morgan Stanley DW pays interest on these funds as described in Note 1. 3. Trading Managers Demeter, on behalf of each Partnership, retains certain commodity trading managers to make all trading decisions for the Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) Partnerships. The trading managers for each Partnership at December 31, 2001 were as follows: Dean Witter Cornerstone Fund II John W. Henry & Company, Inc. Northfield Trading L.P. Dean Witter Cornerstone Fund III Sunrise Capital Management, Inc. Welton Investment Corporation Dean Witter Cornerstone Fund IV John W. Henry & Company, Inc. Sunrise Capital Management, Inc. Compensation to the trading managers by the Partnerships consists of a management fee and an incentive fee as follows: Management Fee--Each Partnership's management fee is accrued at the rate of 1/12 of 3.5% per month (a 3.5% annual rate) of the Net Assets under management by each trading manager at each month end. Prior to December 1, 2000, each Partnership's management fee was accrued at the rate of 1/3 of 1% per month (a 4% annual rate) of the Net Assets under management by each trading manager at each month end. Incentive Fee--Each Partnership pays an annual incentive fee equal to 15% of the new appreciation in Net Assets, as defined in the Limited Partnership Agreements, as of the end of each annual incentive period ending December 31, except for Dean Witter Cornerstone Fund IV, which pays incentive fees at the end of each annual incentive period ending May 31. New appreciation represents the amount by which Net Assets are increased by profits from futures, forward and options trading that exceed losses after brokerage commissions, management fees, transaction fees and costs and common administrative expenses are deducted. Such incentive fee is accrued in each month in which new appreciation occurs. In those months in which new appreciation is negative, previous accruals, if any, during the incentive period will be reduced. In those instances in which a Limited Partner redeems an investment, the incentive fee (if earned through a redemption date) is to be paid on those redemptions to the trading manager in the month of such redemption. 4. Financial Instruments The Partnerships trade futures contracts, options on futures contracts, and forward contracts on foreign currencies and other commodity interests. Futures and forwards represent contracts for delayed delivery of an instrument at a specified date and price. Risk arises from changes in the value of these contracts and the potential inability of counterparties to perform under the terms of the contracts. There are numerous factors which may significantly influence the market value of these contracts, including interest rate volatility. Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) The Partnership accounts for its derivative investments in accordance with the provisions of Statement of Financial Accounting Standard No. 133, "Accounting for Derivative Instruments and Hedging Activities" (''SFAS No. 133"). SFAS No. 133 defines a derivative as a financial instrument or other contract that has all three of the following characteristics: (1)One or more underlying notional amounts or payment provisions; (2)Requires no initial net investment or a smaller initial net investment than would be required relative to changes in market factors; (3)Terms require or permit net settlement. Generally derivatives include futures, forward, swaps or options contracts, and other financial instruments with similar characteristics such as caps, floors and collars. The net unrealized gains (losses) on open contracts, at December 31 reported as a component of "Equity in futures interests trading accounts" on the statements of financial condition, and their longest contract maturities are as follows: Cornerstone II

Cornerstone III

Cornerstone IV

Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) The Partnerships have credit risk associated with counterparty nonperformance. The credit risk associated with the instruments in which the Partnerships are involved is limited to the amounts reflected in the Partnerships' statements of financial condition. The Partnerships also have credit risk because Morgan Stanley DW, MS&Co., and MSIL act as the futures commission merchants or the counterparties with respect to most of the Partnerships' assets. Exchange-traded futures and futures-styled options contracts are marked to market on a daily basis, with variations in value settled on a daily basis. Morgan Stanley DW, MS&Co. and MSIL, each as a futures commission merchant for each Partnership's exchange-traded futures and futures-styled options contracts, are required, pursuant to regulations of the Commodity Futures Trading Commission, to segregate from their own assets, and for the sole benefit of their commodity customers, all funds held by them with respect to exchange-traded futures and futures-styled options contracts, including an amount equal to the net unrealized gains (losses) on all open futures and futures-styled options contracts, which funds, in the aggregate, totaled at December 31, 2001 and 2000 respectively, $21,690,396 and $24,541,050 for Cornerstone II, $25,791,768 and $28,479,266 for Cornerstone III, and $101,084,842 and $98,123,780 for Cornerstone IV. With respect to each Partnership's off-exchange-traded forward currency contracts, there are no daily settlements of variations in value nor is there any requirement that an amount equal to the net unrealized gains (losses) on open forward contracts be segregated. With respect to those off-exchange-traded forward currency contracts, the Partnerships are at risk to the ability of MS&Co., the sole counterparty on all such contracts, to perform. Each Partnership has a netting agreement with MS&Co. These agreements, which seek to reduce both the Partnerships' and MS&Co.'s exposure on off-exchange-traded forward currency contracts, should materially decrease the Partnerships' credit risk in the event of MS&Co.'s bankruptcy or insolvency. Dean Witter Cornerstone Funds Notes to Financial Statements--(Continued) 5. Financial Highlights Cornerstone II

Cornerstone III

Cornerstone IV

Dean Witter Cornerstone Funds Notes to Financial Statement--(Concluded) 6. Legal Matters In April 2001, the Appellate Division of New York State dismissed the class action previously disclosed in the Partnership's Annual Report for the year ended December 31, 2000. Because plaintiffs did not exercise their right to appeal any further, this dismissal constituted a final resolution of the case. 7. Subsequent Event On February 27, 2002, Dean Witter Cornerstone Fund II and Dean Witter Cornerstone Fund III received notification of a preliminary entitlement to payment from the Sumitomo Copper Litigation Settlement Administrator. Such preliminary award, however, is subject to a court hearing scheduled on April 10, 2002 and is entirely contingent on the court's final approval. Any amount ultimately received will be accounted for in the period received, for the benefit of the limited partners at the date of receipt. [LOGO] Morgan Stanley PRESORTED c/o Morgan Stanley Trust Company, FIRST CLASS MAIL Attention: Managed Futures, 7th Floor, U.S. POSTAGE Harborside Financial Center, Plaza Two PAID Jersey City, NJ 07311-3977 PERMIT #374 LANCASTER, PA ADDRESS SERVICE REQUESTED [LOGO] printed on recycled paper

WITTER DEAN CORNERSTONE FUND IV 10-K