According to ChainCatcher news and Forbes reports, securities filing documents show that hedge funds Millennium Management, Capula Management, and Tudor Investment increased their investments in U.S. spot Bitcoin ETFs in the third quarter.

Millennium's holdings in the iShares Bitcoin Trust increased more than double compared to the previous quarter, reaching 23.5 million shares worth $849 million. It also increased its positions in the ARK 21Shares and Bitwise Bitcoin ETFs; London-based macro hedge fund Capula increased its holdings in the iShares Bitcoin Trust and Fidelity Wise Origin Bitcoin Fund, with total positions amounting to approximately $600 million; Paul Tudor Jones' hedge fund Tudor significantly increased its investment in the iShares Bitcoin Trust, raising its share count fivefold to 4.4 million shares.