4% of the entire bitcoin supply is now backing US spot ETFs

The recently listed spot bitcoin exchange-traded funds in the United States continue to vacuum up bitcoins — now holding roughly 4% of the entire 21 million BTC +1.00% supply.

Yesterday, total net inflows into U.S.-listed spot bitcoin ETFs were $472.6 million, according to data from BitMEX Research. At the same time, Fidelity's FBTC spot bitcoin ETF saw a record single-day net inflow of $473.4 million. Conversely, Grayscale's GBTC higher fee fund saw a single-day net outflow of $374.8 million. 

Furthermore, the total net asset value of all spot bitcoin ETFs reached more than $54 billion, with cumulative net inflows hitting $9.37 billion.

This latest data means that spot bitcoin ETFs now hold nearly 4% of the entire supply of the foremost cryptocurrency — data backed up by Dragonfly's @hildobby_.

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Additionally, the nine new spot bitcoin ETFs, dubbed the "newborn nine," are on pace to hold more bitcoins than Grayscale's converted GBTC fund by the end of today's U.S. market session.

GBTC held 400,186 bitcoins as of yesterday, while the "newborn nine" U.S. spot bitcoin ETFs held 397,847 coins, according to K33 Research senior analyst Vetle Lunde.

In related news, BlackRock plans to buy its own spot bitcoin ETFs — as well as other bitcoin ETFs — with its Global Allocation Fund, which holds assets close to $18 billion.