Jane Street Boosts IBIT Holdings to 20.3M Shares
Trading firm Jane Street significantly expanded its stake in BlackRock's iShares Bitcoin Trust (IBIT) during the fourth quarter of 2025. According to public filings, the company added 7,105,206 shares, elevating its total reported holdings to 20,315,780 shares. This substantial purchase highlights the growing scale of institutional participation in regulated crypto investment vehicles, but the size of the position has also drawn intense market focus.
Disclosure Fuels "10AM Dump" Manipulation Theory
The release of Jane Street's updated holdings has reignited a persistent market theory alleging a coordinated daily sell program. Speculators have linked the trading firm's large position to a rumored "10AM dump," a supposed strategy to systematically apply selling pressure on Bitcoin's price around the U.S. market open. While no direct evidence confirms Jane Street's involvement in such a scheme, its large and growing position in a key Bitcoin ETF makes it a focal point for these manipulation claims.
Institutional ETF Flows Face Mounting Scrutiny
The controversy places a spotlight on the broader impact of large institutional players in the spot Bitcoin ETF market. As major trading firms accumulate significant positions, their trading patterns can have an outsized effect on Bitcoin's price discovery and overall market volatility. The speculation surrounding Jane Street's activities could erode investor trust and may attract closer examination of the transparency and fairness of these new financial products.
