Bitcoin ETF Flows Swing Back Positive as BTC Jumps Above $81K

US spot Bitcoin exchange-traded funds (ETFs) ended the past five trading days almost exactly where they started, with strong inflows at the beginning and end of the period offsetting a sharp two-day wave of withdrawals.

According to Farside Investors, spot Bitcoin ETFs recorded $159.9 million in net inflows on Sept. 14 before sentiment deteriorated sharply. Investors pulled $450.4 million from the funds on Sept. 15, followed by another $295.9 million on Sept. 16. That brought the two-day outflow total to roughly $746.3 million.

Bitcoin ETF flows (Source: Farside Investors)

Demand then returned. The ETFs attracted $159.5 million on Sept. 17 before inflows accelerated to $433 million on Sept. 18, the strongest daily reading of the five-session period.

Altogether, the funds recorded approximately $6.1 million in net inflows across the five trading days.

Fidelity’s FBTC was the standout on Sept. 18 after attracting $310.7 million, while BlackRock’s IBIT added another $108.4 million. IBIT also recorded $183.7 million in inflows on Sept. 17 after experiencing sizeable withdrawals during the previous two sessions.

The volatile ETF flows coincided with a major swing in Bitcoin’s price. BTC began the week trading around the upper-$70,000 range and briefly climbed above $79,000 before coming under heavy pressure. By Sept. 15 and Sept. 16, Bitcoin fell below $76,000, with the decline occurring alongside the two large ETF outflow sessions.