According to Foresight News, asset managers BlackRock and Grayscale currently hold nearly 3% of all Bitcoin in circulation in their U.S. spot Bitcoin ETFs.

Data shows that BlackRock iShares Bitcoin Trust (IBIT) currently holds 357,736.76150 BTC, while Grayscale's GBTC holds 227,712.3295 BTC.

Additionally, Grayscale holds 5,962 BTC in its Digital Large Cap Fund and 32,692.0926 BTC in its Grayscale Bitcoin Mini Trust.