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Quant Giant Jane Street Adds $276M in IBIT Shares During Q4 2025

Jane Street Group sharply increased its exposure to Blackrock’s Ishares Bitcoin Trust in the fourth quarter of 2025, scooping up 7,105,206 additional shares, according to its latest SEC filing. The move lifted the quanti...

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Older archive item. Useful for background and entity history, but not a fresh market-moving signal.

Quant Giant Jane Street Adds $276M in IBIT Shares During Q4 2025
Jane Street Group sharply increased its exposure to Blackrock’s Ishares Bitcoin Trust in the fourth quarter of 2025, scooping up 7,105,206 additional shares, according to its latest SEC filing. The move lifted the quantitative trading firm’s total IBIT holdings to 20,315,780 shares — a roughly 54% quarter-over-quarter jump that places its position at just over […]

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BlackRock is showing up inside the Bitcoin ETF theme, so this story is worth tracking for follow-through rather than treating it as a one-off headline.

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