Bitcoin on Fire: Frenzy Intensifies as $6.8 Billion Floods Into Crypto ETFs in Just 6 Weeks

Six straight weeks of institutional money flooding into Bitcoin ETFs pushed BTC up 24% in a month, but something just broke the streak and now the entire rally hangs on a single data point yet to print.

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Bitcoin (CRYPTO:BTC) trades at $76,011.20 as of 11:08 a.m. ET on September 15, 2026, down 3.24% in the past 24 hours and off 2.54% since the prior daily close of $77,992.49. Zoom out and the picture flips: BTC is still up 24.12% over the past month, a run built almost entirely on one thing: money pouring into U.S. spot Bitcoin ETFs. So what actually drove the six-week surge, and why is it wobbling today?

What Set Off the Six-Week Frenzy

The trigger sits outside crypto price action entirely. Per figures circulating on X this week, crypto ETFs pulled in $1.3 billion of inflows last week, following $3.3 billion the week before, extending a streak to six consecutive weeks of net inflows totaling $6.8 billion. The iShares Bitcoin Trust ETF (NASDAQ:IBIT), the largest spot Bitcoin ETF in the U.S., accounted for $3.4 billion of that total on its own. That pushed the four-week average of crypto ETF inflows to $1.5 billion, the highest since November 2025.