Biggest One Day ETF Inflow In Months

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Last Friday, the Bitcoin ETFs saw a total inflow of $494.4 million - that’s the largest inflow in months.

The largest contributors were:

• Ark Invest’s ARKB with $203.1 million
• Fidelity’s FBTC with $123.6 million
• BlackRock’s IBIT with $110.8 million.
  

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The correlation between ETF inflows and Bitcoin's price is largely driven by the specific "cash creation" model mandated by the SEC for these funds. Unlike many traditional ETFs that use "in-kind" transfers (swapping the asset directly for shares), Bitcoin ETF issuers must accept cash from investors and physically purchase the underlying Bitcoin to back new shares. This creates immediate, programmable buying pressure on the spot market whenever net inflows occur.

This marks the largest day of BTC ETF inflow since July 22nd, which saw $485.9 million in total inflows. The last day to surpass both of these days was on June 4th, which saw a total of $886.6 million in total inflows.

It also marks 7 straight days of BTC ETF inflows, totalling a combined $1.36 billion. The last period to see at least 7 straight days of inflows came in mid-August, which saw 8 straight days of inflows between August 15th - 26th, totalling $756 million in inflows.

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Since BTC ETFs were approved in January of this year, there has been a total inflow of $18.8 billion across all BTC ETFs.

BlackRock’s IBIT has seen by far the most, with $21.4 billion. Grayscale’s GBTC has been the only ETF out of eleven total approved BTC ETFs to see outflows, with a total outflow of $20.1 billion.

Grayscale's unique outflow situation is a result of two factors: fee structure and investor lock-ups. GBTC charges a management fee of 1.5%, significantly higher than competitors like BlackRock (IBIT) which charge around 0.25%, incentivizing investors to rotate capital into cheaper funds. Additionally, for years GBTC operated as a closed-end trust where investors could not redeem shares; its conversion to an ETF finally allowed long-term holders to exit their positions, leading to sustained selling pressure even as the broader market bought in.