https://www.sec.gov/Archives/edgar/data/1980994/000143774923017574/bit20230608_s1.htm
On each Business Day, as soon as practicable after 4:00 p.m. Eastern Time (“ET”), the Trust Administrator evaluates the bitcoin held by the Trust as reflected by the CF Benchmarks Index and determines the net asset value of the Trust and the NAV. For purposes of making these calculations, a Business Day means any day other than a day when NASDAQ is closed for regular trading. The CF Benchmarks Index employed by the Trust is calculated on each Business Day by aggregating the notional value of bitcoin trading activity across major bitcoin spot exchanges.
The CF Benchmarks Index is designed based on the IOSCO Principles for Financial Benchmarks and is a Registered Benchmark under the UK Benchmark Regulations (“BMR”). The administrator of the CF Benchmarks Index is CF Benchmarks Ltd. (the “Index Administrator”) a UK-incorporated company, authorized and regulated by the Financial Conduct Authority (“FCA”) of the UK as a Benchmark Administrator, under UK BMR. The CF Benchmarks Index serves as a once-a-day benchmark rate of the U.S. dollar price of bitcoin (USD/BTC), calculated as of 4:00 p.m. ET. The CF Benchmarks Index aggregates the trade flow of several bitcoin exchanges, during an observation window between 3:00 p.m. and 4:00 p.m. ET into the U.S. dollar price of one bitcoin at 4:00 p.m. ET. Specifically, the CF Benchmarks Index is calculated based on the “Relevant Transactions” (as defined in “Business of the Trust—Valuation of Bitcoin; the CF Benchmarks Index”) of all of its constituent bitcoin exchanges, which are currently Bitstamp, Coinbase, itBit, Kraken, Gemini, and LMAX Digital (the “Constituent Platforms”), and which may change from time to time.