Jane Street’s Bitcoin ETF Stakes Reach $1.79 Billion

TLDR Jane Street increased its Fidelity Bitcoin ETF holdings nearly eightfold during Q3 2026. Fidelity’s FBTC position reached approximately $509.2 million, compared with $45.3 million in June. BlackRock’s IBIT share count declined 18.7%, although its reported market value increased. ARKB holdings climbed 333%, reaching approximately 11.69 million shares by September 30. Combined holdings across the [...]

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