Fidelity Leads $433 Million Bitcoin ETF Rebound as Weekly Flows Nearly Break Even

By Isaac • September 19, 2026 7:10 pm •

U.S. spot Bitcoin exchange-traded funds finished the week with a sharp burst of demand, and Fidelity—not BlackRock—did most of the lifting.

The funds recorded a combined $433 million of net inflows on Friday, September 18, according to Farside Investors. Fidelity’s Wise Origin Bitcoin Fund, or FBTC, collected $310.7 million, making it the dominant source of demand for the session and reversing the fund’s outflow from one day earlier.

BlackRock’s IBIT added $108.4 million, while Bitwise, ARK 21Shares and VanEck supplied smaller positive totals. Those contributions put five separate issuers in positive territory and made the rebound broader than a single-fund surge.

The issuer-by-issuer table also showed zero net flow for Invesco, Franklin, Valkyrie, WisdomTree, Morgan Stanley