– Asset management firms hoping to be among the first to win regulatory approval to launch exchange-traded funds (ETFs) tied to the spot price of bitcoin updated their filings with the Securities and Exchange Commission on Thursday and Friday, as market participants said a decision from the regulator may be imminent. By late Friday afternoon, BlackRock Asset Management, VanEck, Valkyrie Investments, Bitwise Investment Advisers, Invesco Ltd., Fidelity, WisdomTree Investments and a joint venture between Ark Investments and 21Shares had all submitted new documents with regulators spelling out details of the arrangements each has made with their marketmakers to ensure trading is liquid and efficient. People familiar with the filing process said issuers that met their end-of-the-year filing revision deadlines may be able to launch by January 10 – the date by which the SEC is required to either approve or reject the Ark/21Shares ETF.