Quantitative trading firm and liquidity provider Jane Street holds a bitcoin position worth nearly $1 billion — equivalent to 15,394 BTC at current prices — according to a regulatory filing with the U.S. Securities and Exchange Commission.

The details emerged in a Form 13F, the quarterly report that institutional investment managers with at least $100 million in U.S. equities must file with the SEC. The forms show holdings as of the final day of the quarter and are due within 45 days of quarter-end, which is why Jane Street's second-quarter position became public in mid-August.

The Wall Street giant does not hold the exposure in the form of digital coins. The filing shows $990 million invested in Bitcoin exchange-traded funds, spread across major products including BlackRock's iShares Bitcoin Trust, Fidelity's Wise Origin Bitcoin Fund and Grayscale's Bitcoin Trust.

The lion's share of the firm's holdings sits in BlackRock's fund, with $828 million invested solely in that vehicle, according to the filing.

JUST IN: Wall Street giant Jane Street dropped a bombshell SEC filing: They disclosed owning over $990 million in Bitcoin ETFs pic.twitter.com/CFEMd8MlRg — Bitcoin Magazine (@BitcoinMagazine) August 17, 2026

BlackRock's fund is the biggest and most popular of the spot Bitcoin ETFs, which were approved and started trading at the beginning of 2024. The fund has received more cash than any other crypto ETF and currently has $47.3 billion in assets under management.

Jane Street is deeply embedded in those products: when the spot ETFs launched, the firm was among the authorized participants — the institutions that create and redeem fund shares to keep market prices in line with the underlying bitcoin — for BlackRock's fund and other spot Bitcoin funds, and it is one of the largest market makers in crypto markets.

Major firms have been able to buy exposure to the asset through shares of the regulated vehicles, which trade on stock exchanges. Pension funds and U.S. states have all bought exposure to Bitcoin via the ETFs, alongside more traditional investments such as tech stocks and other U.S. equities.

Jane Street on Monday posted its first losing month in about a decade, revealing roughly $15 billion in July losses. The loss was driven mainly by its stake in AI-focused hedge fund Situational Awareness, which stumbled badly amid AI bet losses and margin calls, and by bad bets in Asian equity markets.

Despite the loss, Jane Street has made over $40 billion in net trading revenue year-to-date, according to Bloomberg. That is already more than all of 2025, when the firm set a Wall Street record with $39.6 billion, beating Goldman Sachs and JPMorgan.

Wall Street firms Edelman Financial and Tudor Investment Corporation last week also revealed significant Bitcoin positions, along with Abu Dhabi's sovereign wealth funds. The cluster of disclosures reflects the quarterly 13F calendar; the next round of filings, due by mid-November, will show whether these holdings changed during the third quarter.

This article by Mathew Di Salvo first appeared on Bitcoin Magazine.