8-K 1 wfm01001.txt OCTOBER 8K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 Form 8-K Current Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2001 WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2001-1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-48720-02 Pooling and Servicing Agreement) (Commission 52-2300462 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank Minnesota, N.A. 11000 Broken Land Parkway Columbia, MD 21044 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 Former name or former address, if changed since last report) ITEM 5. Other Events On October 25, 2001 a distribution was made to holders of WELLS FARGO ASSET SECURITIES CORPORATION, Mortgage Pass-Through Certificates, Series 2001-1 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-1 Trust, relating to the October 25, 2001 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2001-1 Trust By: Wells Fargo Bank Minnesota, NA, as Master Servicer By: /s/ Beth Belfield, Officer By: Beth Belfield, Officer Date: 11/6/01 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-1 Trust, relating to the October 25, 2001 distribution. EX-99.1

Wells Fargo Asset Securities Corporation Mortgage Pass-Through Certificates Record Date: 89/3130/01 Distribution Date: 910/25/01 WFMBS Series: 2001-1 Contact: Customer Service - SecuritiesLink Wells Fargo Bank Minnesota, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 846-8130 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution A-PO 94976KAD0 PO 0.00000% 397,~~625~~263.0645 0.00 ~~361~~377.6045 A-1 94976KAA6 SEQ 7.00000% ~~169~~166,~~458~~863,~~331~~930.8634 ~~988~~973,~~506~~372.9493 28,~~594~~390,~~401~~038.5382 A-2 94976KAB4 SEQ 7.00000% 14,~~190~~273,~~768~~548.9544 8283,~~779~~262.4937 (8283,~~779~~262.4937) A-3 94976KAC2 SEQ 7.00000% 22,527,000.00 131,407.50 0.00 A-R 94976KAE8 RES 7.00000% 0.00 0.00 0.00 B-1 94976KAF5 SUB 7.00000% 3,~~472~~470,~~868~~172.9678 20,~~258~~242.4067 2,~~696~~647.1808 B-2 94976KAG3 SUB 7.00000% 1,~~121~~120,~~146~~276.7535 6,~~540~~534.0295 ~~870~~854.4156 B-3 94976KAH1 SUB 7.00000% 783,~~907~~298.4081 4,~~572~~569.7924 ~~608~~597.5951 B-4 94976KAJ7 SUB 7.00000% ~~560~~559,~~075~~641.9716 3,~~267~~264.1157 ~~434~~426.8290 B-5 94976KAK4 SUB 7.00000% ~~336~~335,~~244~~983.5550 1,~~961~~959.4390 ~~261~~256.0529 B-6 94976KAL2 SUB 7.00000% 448,~~837~~489.8439 2,~~681~~616.1319 ~~312~~253.9566 Totals ~~213~~210,~~296~~779,~~807~~604.3422 1,~~241~~227,~~974~~230.8132 28,~~517~~312,~~167~~189.6490

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-PO 0.00 ~~397~~396,~~263~~886.4501 ~~361~~377.6045 0.00 A-1 0.00 ~~166~~158,~~863~~473,~~930~~891.3451 39,~~582~~363,~~908~~411.4775 0.00 A-2 0.00 14,~~273~~356,~~548~~810.4481 0.00 0.00 A-3 0.00 22,527,000.00 131,407.50 0.00 A-R 0.00 0.00 0.00 0.00 B-1 0.00 3,~~470~~467,~~172~~525.7870 22,~~954~~889.5875 0.00 B-2 0.00 1,~~120~~119,~~276~~421.3579 7,~~410~~389.4351 0.00 B-3 0.00 ~~783~~782,~~298~~701.8130 5,~~181~~166.3875 0.00 B-4 0.00 559,~~641~~214.1626 3,~~701~~691.9347 0.00 B-5 0.00 335,~~983~~727.5021 2,~~222~~216.4819 0.00 B-6 3588.5145 448,~~489~~147.3927 2,~~994~~869.0885 1,~~235~~324.7217 Totals 3588.5145 ~~210~~202,~~779~~467,~~604~~325.2286 39,~~759~~539,~~142~~420.4522 1,~~235~~324.7217 All distributions required by the Pooling and Servicing Agreement have been calculated by the Certificate Administrator on behalf of the Trustee.

Principal Distribution Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) A-PO 409,440.81 397,~~625~~263.0645 ~~347~~349.5971 1427.0173 0.00 0.00 A-1 181,951,000.00 ~~169~~166,~~458~~863,~~331~~930.8634 ~~165~~156,~~341~~914.3257 28,~~429~~233,~~060~~124.2026 0.00 0.00 A-2 13,624,600.00 14,~~190~~273,~~768~~548.9544 0.00 0.00 (8283,~~779~~262.4937) 0.00 A-3 22,527,000.00 22,527,000.00 0.00 0.00 0.00 0.00 A-R 100.00 0.00 0.00 0.00 0.00 0.00 B-1 3,491,000.00 3,~~472~~470,~~868~~172.9678 2,~~696~~647.1808 0.00 0.00 0.00 B-2 1,127,000.00 1,~~121~~120,~~146~~276.7535 ~~870~~854.4156 0.00 0.00 0.00 B-3 788,000.00 783,~~907~~298.4081 ~~608~~597.5951 0.00 0.00 0.00 B-4 563,000.00 ~~560~~559,~~075~~641.9716 ~~434~~426.8290 0.00 0.00 0.00 B-5 338,000.00 ~~336~~335,~~244~~983.5550 ~~261~~256.0529 0.00 0.00 0.00 B-6 451,181.12 448,~~837~~489.8439 ~~312~~253.9566 0.00 0.00 3588.5145 Totals 225,270,321.93 ~~213~~210,~~296~~779,~~807~~604.3422 ~~170~~162,~~872~~300.9128 28,~~429~~233,~~074~~151.2199 (8283,~~779~~262.4937) 3588.5145 (1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Principal Distribution Statement (continued) Total Ending Ending Total Principal Certificate Certificate Principal Class Reduction Balance Percentage Distribution A-PO ~~361~~377.6045 ~~397~~396,~~263~~886.4501 0.~~97025856~~96933672 ~~361~~377.6045 A-1 28,~~594~~390,~~401~~038.5382 ~~166~~158,~~863~~473,~~930~~891.3451 0.~~91708169~~87097016 28,~~594~~390,~~401~~038.5382 A-2 (8283,~~779~~262.4937) 14,~~273~~356,~~548~~810.4481 1.~~04763064~~05374182 (8283,~~779~~262.4937) A-3 0.00 22,527,000.00 1.00000000 0.00 A-R 0.00 0.00 0.00000000 0.00 B-1 2,~~696~~647.1808 3,~~470~~467,~~172~~525.7870 0.~~99403402~~99327577 2,~~696~~647.1808 B-2 ~~870~~854.4156 1,~~120~~119,~~276~~421.3579 0.~~99403403~~99327577 ~~870~~854.4156 B-3 ~~608~~597.5951 ~~783~~782,~~298~~701.8130 0.~~99403402~~99327576 ~~608~~597.5951 B-4 ~~434~~426.8290 559,~~641~~214.1626 0.~~99403403~~99327577 ~~434~~426.8290 B-5 ~~261~~256.0529 335,~~983~~727.5021 0.~~99403402~~99327577 ~~261~~256.0529 B-6 ~~348~~342.4611 448,~~489~~147.3927 0.~~99403404~~99327576 ~~312~~253.9566 Totals 28,~~517~~312,~~203~~278.1535 ~~210~~202,~~779~~467,~~604~~325.2286 0.~~93567409~~89877497 28,~~517~~312,~~167~~189.6490

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-PO 409,440.81 ~~971~~970.~~14173841~~25855825 0.~~84893834~~85411613 0.~~03421740~~06772652 0.00000000 A-1 181,951,000.00 ~~931~~917.~~34048101~~08168870 0.~~90871344~~86240015 1345.~~35007887~~24912894 0.00000000 A-2 13,624,600.00 ~~1041~~1047.~~55490436~~63064163 0.00000000 0.00000000 (6.~~07573727~~11117904) A-3 22,527,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 3,491,000.00 994.~~80634775~~03402463 0.~~77232312~~75825838 0.00000000 0.00000000 B-2 1,127,000.00 994.~~80634428~~03402839 0.~~77232476~~75826087 0.00000000 0.00000000 B-3 788,000.00 994.~~80634518~~03402284 0.~~77232234~~75826142 0.00000000 0.00000000 B-4 563,000.00 994.~~80634103~~03403197 0.~~77232682~~75825933 0.00000000 0.00000000 B-5 338,000.00 994.~~80636095~~03402367 0.~~77233728~~75825444 0.00000000 0.00000000 B-6 451,181.12 994.~~80634296~~03403671 0.~~69362388~~56221324 0.00000000 0.00000000 (2) Per $1,000 Denomination.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution A-PO 0.00000000 0.~~88315574~~92186707 ~~970~~969.~~25855825~~33671560 0.~~97025856~~96933672 0.~~88315574~~92186707 A-1 0.00000000 1446.~~25879237~~11152904 ~~917~~870.~~08168870~~97015960 0.~~91708169~~87097016 1446.~~25879237~~11152904 A-2 0.00000000 (6.~~07573727~~11117904) 1,~~047~~053.~~63064163~~74182068 1.~~04763064~~05374182 (6.~~07573727~~11117904) A-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 0.~~77232312~~75825838 ~~994~~993.~~03402463~~27576626 0.~~99403402~~99327577 0.~~77232312~~75825838 B-2 0.00000000 0.~~77232476~~75826087 ~~994~~993.~~03402839~~27576752 0.~~99403403~~99327577 0.~~77232476~~75826087 B-3 0.00000000 0.~~77232234~~75826142 ~~994~~993.~~03402284~~27576142 0.~~99403402~~99327576 0.~~77232234~~75826142 B-4 0.00000000 0.~~77232682~~75825933 ~~994~~993.~~03403197~~27577265 0.~~99403403~~99327577 0.~~77232682~~75825933 B-5 0.00000000 0.~~77233728~~75825444 ~~994~~993.~~03402367~~27576923 0.~~99403402~~99327577 0.~~77233728~~75825444 B-6 0.~~07870453~~19604100 0.~~77232842~~75825425 ~~994~~993.~~03403671~~27576030 0.~~99403404~~99327576 0.~~69362388~~56221324 (3) Amount Does Not Include Excess Special Hazard, Bankrupcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall A-PO 409,440.81 0.00000% 397,~~625~~263.0645 0.00 0.00 0.00 A-1 181,951,000.00 7.00000% ~~169~~166,~~458~~863,~~331~~930.8634 ~~988~~973,~~506~~372.9493 0.00 0.00 A-2 13,624,600.00 7.00000% 14,~~190~~273,~~768~~548.9544 8283,~~779~~262.4937 0.00 0.00 A-3 22,527,000.00 7.00000% 22,527,000.00 131,407.50 0.00 0.00 A-R 100.00 7.00000% 0.00 0.00 0.00 0.00 B-1 3,491,000.00 7.00000% 3,~~472~~470,~~868~~172.9678 20,~~258~~242.4067 0.00 0.00 B-2 1,127,000.00 7.00000% 1,~~121~~120,~~146~~276.7535 6,~~540~~534.0295 0.00 0.00 B-3 788,000.00 7.00000% 783,~~907~~298.4081 4,~~572~~569.7924 0.00 0.00 B-4 563,000.00 7.00000% ~~560~~559,~~075~~641.9716 3,~~267~~264.1157 0.00 0.00 B-5 338,000.00 7.00000% ~~336~~335,~~244~~983.5550 1,~~961~~959.4390 0.00 0.00 B-6 451,181.12 7.00000% 448,~~837~~489.8439 2,~~618~~616.2219 620.9100 0.00 Totals 225,270,321.93 1,~~241~~227,~~911~~230.9032 620.9100 0.00

Interest Distribution Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (4) Distribution Shortfall Balance A-PO 0.00 0.00 0.00 0.00 ~~397~~396,~~263~~886.4501 A-1 0.00 0.00 ~~988~~973,~~506~~372.9493 0.00 ~~166~~158,~~863~~473,~~930~~891.3451 A-2 0.00 0.00 8283,~~779~~262.4937 0.00 14,~~273~~356,~~548~~810.4481 A-3 0.00 0.00 131,407.50 0.00 22,527,000.00 A-R 0.00 0.00 0.00 0.00 0.00 B-1 0.00 0.00 20,~~258~~242.4067 0.00 3,~~470~~467,~~172~~525.7870 B-2 0.00 0.00 6,~~540~~534.0295 0.00 1,~~120~~119,~~276~~421.3579 B-3 0.00 0.00 4,~~572~~569.7924 0.00 ~~783~~782,~~298~~701.8130 B-4 0.00 0.00 3,~~267~~264.1157 0.00 559,~~641~~214.1626 B-5 0.00 0.00 1,~~961~~959.4390 0.00 335,~~983~~727.5021 B-6 0.00 0.00 2,~~681~~616.1319 0.00 448,~~489~~147.3927 Totals 0.00 0.00 1,~~241~~227,~~974~~230.8132 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankrupcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Factors Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class (5) Amount Rate Balance Interest Shortfall Shortfall A-PO 409,440.81 0.00000% ~~971~~970.~~14173841~~25855825 0.00000000 0.00000000 0.00000000 A-1 181,951,000.00 7.00000% ~~931~~917.~~34048101~~08168870 5.~~43281950~~34964320 0.00000000 0.00000000 A-2 13,624,600.00 7.00000% ~~1041~~1047.~~55490436~~63064163 6.~~07573727~~11117904 0.00000000 0.00000000 A-3 22,527,000.00 7.00000% 1000.00000000 5.83333333 0.00000000 0.00000000 A-R 100.00 7.00000% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 3,491,000.00 7.00000% 994.~~80634775~~03402463 5.~~80303638~~79853051 0.00000000 0.00000000 B-2 1,127,000.00 7.00000% 994.~~80634428~~03402839 5.~~80303461~~79853594 0.00000000 0.00000000 B-3 788,000.00 7.00000% 994.~~80634518~~03402284 5.~~80303299~~79852792 0.00000000 0.00000000 B-4 563,000.00 7.00000% 994.~~80634103~~03403197 5.~~80303730~~79852575 0.00000000 0.00000000 B-5 338,000.00 7.00000% 994.~~80636095~~03402367 5.~~80304734~~79852071 0.00000000 0.00000000 B-6 451,181.12 7.00000% 994.~~80634296~~03403671 5.~~80303538~~79853607 0.~~13943403~~00000000 0.00000000 (5) Per $1,000 Denomination.

Interest Distribution Factors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance A-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~970~~969.~~25855825~~33671560 A-1 0.00000000 0.00000000 5.~~43281950~~34964320 0.00000000 ~~917~~870.~~08168870~~97015960 A-2 0.00000000 0.00000000 6.~~07573727~~11117904 0.00000000 ~~1047~~1053.~~63064163~~74182068 A-3 0.00000000 0.00000000 5.83333333 0.00000000 1000.00000000 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 0.00000000 5.~~80303638~~79853051 0.00000000 ~~994~~993.~~03402463~~27576626 B-2 0.00000000 0.00000000 5.~~80303461~~79853594 0.00000000 ~~994~~993.~~03402839~~27576752 B-3 0.00000000 0.00000000 5.~~80303299~~79852792 0.00000000 ~~994~~993.~~03402284~~27576142 B-4 0.00000000 0.00000000 5.~~80303730~~79852575 0.00000000 ~~994~~993.~~03403197~~27577265 B-5 0.00000000 0.00000000 5.~~80304734~~79852071 0.00000000 ~~994~~993.~~03402367~~27576923 B-6 0.00000000 0.00000000 5.~~94246940~~79853607 0.00000000 ~~994~~993.~~03403671~~27576030 (6) Amount Does Not Include Excess Special Hazard, Bankrupcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance ~~111,855~~0.8200 Deposits Payments of Interest and Principal 39,~~672~~642,~~291~~501.7832 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) ~~22,039~~0.7200 Realized Losses 0.00 Prepayment Penalties 0.00 Total Deposits 39,~~694~~642,~~331~~501.5032 Withdrawals Reimbursement for Servicer Advances 022,039.0072 Payment of Service Fee 4738,~~044~~736.8931 Payment of Interest and Principal 39,~~759~~539,~~142~~420.4423 Total Withdrawals (Pool Distribution Amount) 39,~~806~~600,~~187~~196.3326 Ending Balance 042,305.0006

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall ~~413~~8,159.6426 Servicing Fee Support ~~413~~8,159.6426 Non-Supported Prepayment/Curtailment Interest Shortfall 0.00

SERVICING FEES Gross Servicing Fee 4443,~~436~~909.8271 Master Servicing Fee 32,~~021~~985.7086 Special Servicing Fee 0.00 Supported Prepayment/Curtailment Interest Shortfall ~~413~~8,159.6426 Net Servicing Fee 4738,~~044~~736.8931

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~143~~65,~~477~~141.4135

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 6,758,181.12 3.00003172% 6,~~717~~712,~~861~~737.9953 3.~~18714992~~31546708% 96.~~806832~~678021% 100.000000% Class B-1 3,267,181.12 1.45033802% 3,~~247~~245,~~689~~211.2183 1.~~54079861~~60283237% 1.~~649460~~715998% 0.000000% Class B-2 2,140,181.12 0.95005019% 2,~~127~~125,~~412~~790.8604 1.~~00930679~~04994227% 0.~~532495~~553976% 0.000000% Class B-3 1,352,181.12 0.60024823% 1,~~344~~343,~~114~~088.0574 0.~~63768696~~66336073% 0.~~372322~~387341% 0.000000% Class B-4 789,181.12 0.35032627% ~~784~~783,~~472~~874.8948 0.~~37217685~~38716098% 0.~~266011~~276742% 0.000000% Class B-5 451,181.12 0.20028431% 448,~~489~~147.3927 0.~~21277646~~22134301% 0.~~159701~~166144% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~213178~~221778% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 100,000.00 0.04439111% 100,000.00 0.~~04744292~~04939069% Fraud 4,505,406.44 2.00000000% 4,505,406.44 2.~~13749639~~22525112% Special Hazard 2,941,735.80 1.30586922% 2,941,735.80 1.~~39564538~~45294348% Limit of Subordinate's Exposure to Certain Types of Losses

COLLATERAL STATEMENT Collateral Description Fixed 30 year - Relocation Weighted Average Gross Coupon 7.~~667626~~666182% Weighted Average Pass-Through Rate 7.000000% Weighted Average Maturity(Stepdown Calculation ) ~~351~~350 Beginning Scheduled Collateral Loan Count ~~551~~545 Number Of Loans Paid In Full 620 Ending Scheduled Collateral Loan Count ~~545~~525 Beginning Scheduled Collateral Balance ~~213~~210,~~296~~779,~~807~~604.3521 Ending Scheduled Collateral Balance ~~210~~202,~~779~~467,~~604~~325.2185 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2001 ~~212~~206,~~370~~746,~~998~~652.5950 Monthly P &I Constant 1,~~456~~440,~~771~~977.8669 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 39,~~714~~494,~~315~~819.9626 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~189~~180,~~083~~790,~~355~~862.2515 Ending scheduled Balance For discounted Loans 21,~~696~~676,~~248~~463.9670 Scheduled Principal ~~165~~160,~~632~~831.8752 Unscheduled Principal 28,~~351~~151,~~570~~446.2784 Unpaid Principal Balance Of Outstanding Mortgage Loans With Original LTV: Less Than Or Equal To 80% ~~159~~151,~~155~~836,~~563~~313.8078 Greater Than 80%, less than or equal to 85% 6,~~650~~640,~~387~~220.0228 Greater than 85%, less than or equal to 95% 4443,~~974~~986,~~463~~060.7183 Greater than 95% 0.00

Filing Compare · WELLS FARGO ASSET SECURITIES CORP MOR PAS THR CER SE 2001-01