Bitcoin ETFs Pull $3.8B in Best 3-Week Stretch of 2026

US spot Bitcoin exchange-traded funds recorded their strongest three-week inflow streak of 2026, attracting $986.9 million in the week ending Friday and bringing cumulative net inflows over the period to $3.8 billion, according to SoSoValue data. Total net assets across the funds stood at $101.3 billion by Friday, with cumulative net inflows since launch reaching $55.6 billion. The surge marks a sharp reversal from heavy outflows earlier in the year, though year-to-date net flows remain roughly $1 billion negative.

BlackRock's iShares Bitcoin Trust (IBIT) led Friday's flows with $117.4 million in net inflows—roughly 67% of the day's $174.6 million total—while Fidelity's Wise Origin Bitcoin Fund (FBTC) was the only other fund to attract fresh capital, adding $57.2 million. The single-day total fell sharply from the nearly $731 million posted Thursday, cooling alongside Bitcoin's price action. BTC slipped from around $81,200 to briefly below $79,000 on Friday before recovering to $79,716 at publication, still up about 2.6% over the prior seven days, per CoinGecko.

While Bitcoin ETF demand accelerated, competing products weakened. Compared with the previous week, spot Ether ETF inflows fell about 74% to $218.4 million, and spot XRP ETF inflows plunged roughly 83% to $19 million, according to SoSoValue. Despite the weekly slowdown, both Ether and XRP ETFs remain in positive territory year-to-date, with Ether products netting around $863 million and XRP ETFs attracting roughly $515 million since the start of 2026.