Spot Bitcoin ETFs in the US just pulled off their strongest three-week run of 2026 so far, raking in a combined $3.8 billion. Investors poured in almost $1 billion over the past week alone. Even on Friday, inflows stayed positive—even as BTC briefly slipped below $79,000.

Biggest Three-Week Streak of 2026

The $3.8 billion in inflows over the last three weeks stands out as the most powerful run for US spot Bitcoin ETFs this year. The nearly $1 billion added in just the past week shows that demand for these products is still going strong right now.

Friday Sees Gains Despite BTC Dip

Even though Bitcoin briefly dropped below $79,000, Friday’s spot ETF inflows stayed in the green. That means investors kept putting money in, even as BTC was sliding late in the week.

These numbers are specifically for US spot Bitcoin ETFs, tracking both the last week and the three-week total for 2026 so far.