Crypto Winter Melts: Biggest Weekly Crypto ETF Buying Spree Since the October Flash Crash

Institutional money flooded into Bitcoin ETFs at a pace not seen since last October's flash crash, yet retail investors barely noticed. Understanding where that billion-dollar weekly bid came from reveals exactly how fragile this rally could be.

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Bitcoin trades at $78,142 this morning, and the iShares Bitcoin Trust ETF (NASDAQ:IBIT) closed yesterday at $44.67, up 1.75% on the session. Zoom out and the picture sharpens: Bitcoin (CRYPTO:BTC) has rallied 24% over the past month, rising over $15,000 from just under $63,000 to over $78,000, and IBIT itself is up 25.34% over the same window. That is the biggest one-month advance for the ETF since it began trading, and it lands after a brutal year in which Bitcoin still sits down 27.93% from a year ago.

The buying showed up in the fund flows before it showed up in price.

Where the Bid Actually Came From

According to BofA Global Research data, crypto funds attracted $3.2 billion in inflows last week, their largest weekly intake since October 2025. IBIT alone pulled in $928 million last week, following $1.3 billion in the prior week, its biggest two-week haul since the October 2025 flash crash. Stretch the lens further and crypto funds have averaged $1.3 billion in weekly inflows over the last four weeks, their largest four-week average in 10 months.