U.S. spot Bitcoin ETFs attracted $2.95 billion in net inflows over the last 30 days, according to data from SoSoValue. This momentum continued with an eight-day streak of positive flows beginning Sept. 17, two days after the funds suffered a $450.4 million single-day outflow following the U.S. Senate's failure to advance the Clarity Act. The vote fell short at 49-50 against the required 60 votes, triggering significant market volatility. On Sept. 28 alone, the funds added $31.07 million, marking the weakest day of the current streak. BlackRock’s IBIT led Monday’s activity with $54.84 million in inflows, while Grayscale’s GBTC and Fidelity’s FBTC saw outflows of $23.19 million and $10.90 million, respectively.
The recovery followed a turbulent week where Bitcoin ETFs netted only $6.2 million, their smallest weekly inflow in 141 weeks. Demand rebounded sharply on Sept. 21 with nearly $1 billion in inflows, the best daily performance since October 2025, followed by another $715 million on Sept. 22. Weekly totals reached approximately $2.4 billion, the highest since October 2025. These inflows helped push Bitcoin above the average ETF holder’s cost basis of $81,722, returning typical investors to profit for the first time since January. Ethereum ETFs also gained traction, adding $982.5 million over the month, while Solana and XRP funds recorded inflows of $278.2 million and $127.05 million, respectively.
The rapid reversal from the post-Clarity Act sell-off to sustained institutional buying highlights the resilience of crypto asset demand despite legislative uncertainty. The initial $450.4 million outflow demonstrated how sensitive these vehicles are to regulatory news, yet the subsequent $2.95 billion monthly influx suggests that long-term allocators view such dips as entry opportunities rather than structural failures. This dynamic indicates that the market has begun to price in the delay of specific legislation like the Clarity Act, focusing instead on broader adoption metrics and macroeconomic conditions.
From a market structure perspective, the divergence between fund managers underscores varying investor preferences within the same asset class. While BlackRock’s IBIT captured significant inflows, competitors like Grayscale and Fidelity experienced outflows, suggesting that fee structures, brand trust, or secondary market liquidity may be driving capital allocation decisions more than pure asset exposure. Additionally, the fact that Bitcoin prices recovered above the $81,722 cost basis implies that recent inflows were not merely speculative but sufficient to absorb selling pressure, potentially stabilizing the spot market against future regulatory shocks.
