Jane Street boosts Fidelity Bitcoin ETF holdings nearly 8x, trims IBIT

Jane Street’s share count in Fidelity’s spot Bitcoin exchange-traded fund (ETF) rose nearly eightfold in the third quarter, while its holdings in BlackRock’s fund fell 19%.

The trading giant ended September with 7.01 million shares of Fidelity Wise Origin Bitcoin Fund (FBTC0, up from about 887,000 at the end of June. The position was worth $509 million on Sept. 30, according to its second-quarter and third-quarter filings.

Jane Street’s holdings in BlackRock’s iShares Bitcoin Trust ETF (IBIT) fell to 20.22 million shares from 24.88 million. A higher share price lifted the reported value of its stake to $957 million from $828 million.

Jane Street was the largest reported institutional holder of BlackRock’s Bitcoin ETF at the end of June after boosting its share count by 324% in Q2, according to 13F Pro. IBIT is the world’s largest spot Bitcoin ETF with $56 billion in net assets as of Thursday.

The firm also added nearly 9 million shares (about $249 million) of the $ARK 21Shares Bitcoin ETF (ARKB), while more than doubling its holdings in BlackRock’s iShares Ethereum Trust ETF (ETHA) by 7.83 million shares (about $158 million).

JPMorgan adds IBIT shares as Laurore cuts stake

JPMorgan Chase increased its IBIT holdings by 9.6% in the third quarter, adding about 1 million shares to reach 11.41 million. The US banking giant’s reported IBIT position rose to around $540 million.

In contrast, JPMorgan nearly erased its direct holdings in BlackRock’s ETHA, reducing its position from 1.17 million shares at the end of June to just 399 shares.

The bank also increased its holdings in Bitcoin treasury company Strategy by 36% to nearly 849,000 shares, worth about $131 million at the end of Q3.

Laurore, which lists a Hong Kong business address in its SEC filing, reduced its IBIT holdings by 33%, cutting its position by 1.6 million shares to 3.25 million, worth about $154 million by the end of Q3. Laurore drew attention in February 2026 after disclosing an IBIT position worth $436 million at the end of 2025.