Jane Street, one of Wall Street’s largest quantitative trading firms, purchased $630 million in Bitcoin ETFs in the second quarter of 2026, bringing its total holdings to approximately $1.06 billion. In the first quarter of 2026, the firm had slashed those same holdings by roughly 71%, reducing its IBIT stake from $790 million to $225 million. By June 30, 2026, IBIT holdings had rebounded to 24.9 million shares worth $828 million, representing a near-complete reversal of the first-quarter drawdown. As an authorized participant for several Bitcoin ETFs, Jane Street’s positions at any given quarter-end often reflect inventory for creation and redemption mechanics and client activity rather than directional bets. The firm is also building positions in XRP ETF products, diversifying its crypto derivatives book.
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