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Bitcoin ETFs Hold 6.29% of Supply, Targeting 10% by Mid-2029

9/30/2026

US spot Bitcoin ETFs managed $102.532 billion in assets as of September 18, 2026, representing 6.29% of Bitcoin's total market capitalization.

This figure implies a Bitcoin market capitalization of approximately $1.630 trillion, meaning roughly one Bitcoin in every sixteen is currently held within these funds.

To reach a 10% ownership threshold, the ETFs would need to accumulate an additional $60.5 billion in assets, bringing their total holdings to $163.0 billion.

Since their launch on January 11, 2024, these funds have attracted $55.161 billion in net inflows over just over 32 months.