US Bitcoin and Ethereum ETFs Experience Significant Inflows in Early September 2026

On September 4, 2026, US spot Bitcoin ETFs attracted $175 million in net inflows, while Ethereum ETFs added approximately $26.46 million. This surge in inflows follows a remarkable day on September 3, when Bitcoin ETFs recorded about $731 million in net inflows, marking the largest single-day total since January 2026.

BlackRock's iShares Bitcoin Trust (IBIT) significantly contributed to this trend, pulling in $117.4 million on September 4 alone. The previous day, IBIT had absorbed $454 million, indicating a strong interest from investors. Fidelity's FBTC also played a role, contributing $57.2 million to the total inflows on September 4.

Overall, Bitcoin ETFs have amassed approximately $55.44 billion in cumulative net inflows since their launch in January 2024, with total assets under management reaching around $103.34 billion. Ethereum ETFs have similarly seen about $13.17 billion in cumulative inflows, with total AUM of approximately $15.92 billion.

The recent inflow surge coincides with Bitcoin trading above $80,000 and Ethereum surpassing $2,500, alongside dovish comments from Federal Reserve Governor Christopher Waller, which have contributed to a favorable market sentiment.