$2.77 Billion Flows Into Bitcoin ETFs: A Streak Reminiscent of a Strong Rally
U.S. Bitcoin ETFs recorded net inflows for seven consecutive trading sessions, while Santiment said the $2.77 billion in demand recalled the strong rally in August.
According to Santiment’s Sanbase data, Bitcoin ETFs saw total net inflows of $2.77 billion between September 17 and 27. The firm said both institutional and retail investors were turning to these products to invest in Bitcoin.
The comparison centers on the uninterrupted inflow streak in August. Between August 17 and 27, spot Bitcoin ETFs recorded net inflows for nine consecutive trading sessions, bringing the total to approximately $3.04 billion. Santiment noted that this period coincided with the start of one of Bitcoin’s strongest rallies of the year.
September’s streak trails August’s, but demand remains strong
The latest seven-session inflow streak was smaller than the August comparison in both the number of sessions and total amount. Even so, billions of dollars in net demand once again highlighted the contribution ETFs make to buying pressure in the Bitcoin market.
ETFs from BlackRock and Fidelity were among the products that contributed significantly to inflows recently. According to Santiment, new money flowing into the funds could boost demand for Bitcoin and support upward momentum.

Santiment’s warning: When does demand become a risk?
Alongside the positive picture, the analysis also highlighted fear of missing out, or FOMO. If buying accelerates further after a notable rise in Bitcoin’s price, it could be a sign that investors are starting to act with excessive optimism.
Santiment stressed that healthy demand supports a rally, but the risk can increase when that demand turns into euphoria. The similarity to August therefore matters both for tracking the inflows supporting the rally and for monitoring the nature of buying that accelerates after a price rise.