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Monday’s $31.1 million was the smallest day of the run, with IBIT positive while GBTC and FBTC saw outflows; Ethereum ETFs added $982.5 million over the month.
U.S. spot Bitcoin ETFs added $2.95 billion in net inflows over the past 30 days and have now posted eight straight trading days of inflows, according to SoSoValue.
Monday, Sept. 28, was a quiet session for the group with $31.07 million in net inflows. BlackRock’s iShares Bitcoin Trust (IBIT) took in $54.84 million, while Grayscale’s GBTC saw $23.19 million of outflows and Fidelity’s FBTC shed $10.90 million, SoSoValue’s figures show.
The current streak began on Sept. 17 after a volatile stretch mid-month. On Sept. 15, spot Bitcoin ETFs recorded $450.4 million of outflows, a move that Decrypt reported coincided with the U.S. Senate voting 49–50 against advancing the Clarity Act. Buyers returned quickly: Sept. 21 brought in nearly $1 billion and Sept. 22 added $715 million, followed by $347 million, $191 million and $134 million on Sept. 23–25. By those daily figures, the week totaled roughly $2.4 billion.
Flows were not limited to Bitcoin. SoSoValue data show Ethereum ETFs added $982.5 million over the past 30 days, including $17.1 million on Monday. Over the same period, Solana funds took in $278.2 million and XRP funds $127.05 million.
What to watch next
Two indicators will clarify whether this run has legs: the size of incoming prints relative to last week’s peak days, and breadth across issuers beyond IBIT. A ninth consecutive day would extend the streak, but sustained, larger inflows shared across funds would be a stronger signal than green days alone. Policy headlines may also coincide with shifts in flow cadence, as they did around mid-month.
This content is for informational purposes only and does not constitute financial advice.
🧠 HafidWatch Take
While the inflow streak signals renewed interest, its concentration in a few large days suggests the trend is fragile without consistent, widespread participation across funds. A meaningful extension would require daily inflows not just to continue but to match or exceed recent peaks and spread beyond a single issuer. Additionally, upcoming policy developments could abruptly alter investor behavior, meaning this momentum may hinge as much on external factors as on underlying demand. Monitoring both the scale and diversity of inflows will be essential to distinguish a lasting recovery from a temporary rebound.
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