Strategy surpasses BlackRock as largest Bitcoin holder with 815,061 BTC

Strategy Inc. has overtaken BlackRock as the largest institutional holder of Bitcoin, now holding 815,061 BTC after purchasing 34,164 BTC. This brings Strategy’s holdings to over 4% of Bitcoin’s total supply. The market for Bitcoin being above $62,000 on April 17, 2027, sits at 100% YES.

Market reaction

The purchase has not moved prediction markets. All active sub-markets for Bitcoin above $62,000 and $64,000 on April 17, 2027, hold at 100% YES. The April 18 sub-markets show the same, at 100% YES. The market for Bitcoin being below $66,000 on April 21, 2027, is at 0.1% YES, meaning traders overwhelmingly expect Bitcoin to stay above that level.

Why it matters

Strategy’s purchase is consistent with a broader pattern of institutional Bitcoin accumulation, and markets appear to have already priced in moves like this. Combined 24-hour face value trading volume across these contracts is $170,048, but actual USDC traded was only $493. An order of just $177 can shift odds by 5 percentage points, which means these markets are thin enough that small trades can create misleading price signals.

What to watch

At 0.1¢, a YES share for Bitcoin being under $66,000 by April 21 pays 1,000x, but that outcome would require a sharp and unexpected drop. Watch for further institutional purchase announcements, changes in Federal Reserve policy, or large movements by other major Bitcoin holders that could shift price expectations.

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