Jane Street nearly octupled its holdings of the Fidelity Wise Origin Bitcoin Fund in the third quarter, bringing their value to $509 million. According to quarterly filings, Jane Street held 7.01 million shares as of the end of September, up from about 887,000 at the end of June. Jane Street reduced its holdings of the BlackRock Bitcoin ETF by 19%, but the value of the position rose to $957 million as the share price increased. Jane Street also increased its holdings of the ARK 21Shares Bitcoin ETF and the BlackRock Ethereum ETF.