US spot Bitcoin ETFs see inflows as Bitcoin tops $81,000

After two days of heavy bleeding, US spot Bitcoin ETFs staged a remarkable late-week comeback on September 18, pulling in $433 million in a single session and dragging the week's net total back into positive territory. Bitcoin responded by holding firmly above $81,000.

The net weekly inflow landed at roughly $6.2 million.

The week started ugly. On September 15, investors yanked $450.4 million out of spot Bitcoin ETFs. The next day brought another $296 million in outflows.

Fidelity's FBTC absorbed approximately $310.7 million on September 18, making it the day's dominant magnet for capital. BlackRock's IBIT pulled in about $108.4 million. Together, those two funds accounted for the vast majority of the $433 million daily haul.

Bitcoin's price reflected the shift in sentiment. After wobbling earlier in the week alongside the outflows, it climbed above $81,000 and held there through the weekend, with intraday prints touching near or above $82,000 between September 19 and 21. Short-covering activity, where traders who had bet against Bitcoin were forced to buy back their positions, added fuel to the rally.

A $6.2 million net weekly inflow is a rounding error compared to what these funds have pulled in during their strongest stretches. Back in late August, spot Bitcoin ETFs recorded $1.92 billion in weekly inflows, their best performance in months and the catalyst that first pushed Bitcoin back above $80,000 after a prolonged absence from that level.