SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2024
Accounting Policies [Abstract]
Cash & Cash Equivalents	Cash & Cash Equivalents – Cash, if any, includes non-interest bearing, non-restricted cash maintained with the Cash Custodian.
Investment Transactions and Revenue Recognition	Investment Transactions and Revenue Recognition – The Trust records its investment transactions in bitcoin on a trade date basis and changes in fair value are reflected as net change in unrealized appreciation or depreciation on investment in bitcoin. Realized gains and losses on the Trust’s investment transactions in bitcoin are calculated using the average cost method.
Use of Estimates	Use of Estimates – The preparation of financial statements in conformity with GAAP, requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in the net assets from operations during the reporting period. Actual results could differ from those estimates.
Investment Valuation	Investment Valuation – The Trust’s investment in bitcoin is recorded on the financial statements at fair value in accordance with FASB ASC Topic 820, “Fair Value Measurements and Disclosures” (“ASC 820”). Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A fair value measurement assumes that the transaction to sell the asset or transfer the liability takes place either in the principal market for the asset or liability or, in the absence of a principal market, in the most advantageous market for the asset or liability. ASC 820 defines “principal market” as the market with the greatest volume and level of activity for the asset or liability. The determination of the principal market (and, as a result, the market participants in the principal market) is made from the perspective of the reporting entity. ASC 820 defines “most advantageous market” as the market that maximizes the amount that would be received to sell the asset or minimizes the amount that would be paid to transfer the liability, after taking into account transaction costs and transportation costs. Based on the foregoing, the Trust has determined its principal market for GAAP reporting for its bitcoin investment to be the bitcoin platform operated by Coinbase, Inc. and utilizes an exchange-traded price from that principal market as of 11:59:59 p.m. Eastern Standard Time on the financial statement measurement date. ASC 820 has established a three-tier hierarchy of inputs to be used when determining fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk – for example, the risk inherent in a particular valuation technique used to measure fair value (such as a pricing model) and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The three-tier hierarchy of inputs is summarized in the three broad levels listed below: Level 1 – quoted prices in active markets for identical assets or liabilities Level 2 – other significant observable inputs (inputs other than quoted prices included within Level 1 that are observable for the asset or liability either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not considered to be active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means) Level 3 – significant unobservable inputs (including the Trust’s assumptions in determining the fair value of investments) The inputs or methodology used for valuation are not necessarily an indication of the risk associated with investing in those investments. The summary of fair valuations according to the inputs used in valuing the Trust’s assets as of the measurement date is included in a “Fair Valuation Summary” supplementary table in the Schedule of Investment. For the year ended December 31, 2024, there were no transfers into or out of Level 3 of the fair value hierarchy.
Income Taxes	Income Taxes – The Trust is classified as a “grantor trust” for United States federal income tax purposes. As a result, the Trust itself will not be subject to United States federal income tax. Instead, the Trust’s income and expenses will “flow through” to the shareholders. Consequently, each sale of bitcoin by the Trust would constitute a taxable event to shareholders. The Sponsor evaluates tax positions taken or expected to be taken in the course of its tax treatment, and its tax reporting to its shareholders, of these positions to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions not deemed to meet that threshold would be recorded as an expense in the current year. The Trust is required to analyze all open tax years. The Sponsor has analyzed applicable tax laws and regulations and their application to the Trust as of December 31, 2024 and does not believe that there are any uncertain tax positions that require recognition of a tax liability. Open tax years are those years that are open for examination by the relevant income taxing authority. As of December 31, 2024, the 2023 and 2024 tax years remain open for examination. There were no examinations in progress at period end.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

- Definition

Disclosure of accounting policy for investment in financial asset.

+ References + Details

WisdomTree Bitcoin Fund 10-K