Bitcoin ETFs Extend Inflows as Institutional Demand Returns

| decrypt.co
U.S. spot Bitcoin ETFs recorded $66.19 million in net inflows on September 29, extending the Bitcoin ETF inflow streak to nine consecutive trading sessions. From September 17 to 29, the funds attracted about $3.08 billion, slightly above the $3.04 billion recorded during a similar nine-day streak in August. The broader rally included roughly $2.4 billion in inflows during the week ending September 25, the strongest weekly total since October 2025. September 21 saw the largest daily inflow, at nearly $999 million. BlackRock’s IBIT led weekly inflows with about $1.2 billion, followed by Fidelity’s FBTC at $702 million and ARK 21Shares’ ARKB at $295 million. The three funds accounted for more than 90% of weekly inflows. However, daily demand has weakened. Inflows fell from $999 million on September 21 to $66 million on September 29. Bitcoin traded near $84,400, about 1% higher on the day, but below its September high of roughly $87,350 and approximately one-third below its October 2025 record of $126,296. Since launching in January 2024, U.S. spot Bitcoin ETFs have accumulated more than $57 billion in net inflows, with combined assets approaching $108 billion. The latest buying followed the Federal Reserve’s 25-basis-point rate increase on September 16, which lifted the policy rate to 3.75%-4%. Bitcoin had previously declined to about $75,000, while the funds posted roughly $746 million in outflows over two sessions. The nine-day Bitcoin ETF inflow streak supports institutional sentiment and could provide a price floor if sustained. Traders should watch whether inflows accelerate or reverse, as slowing demand may limit Bitcoin’s near-term upside. The current streak remains shorter than the 13-day record set in June 2025.
Bullish
The nine-session Bitcoin ETF inflow streak and roughly $3.08 billion accumulated since September 17 indicate renewed institutional demand. This is supportive for Bitcoin because spot ETFs buy or hold BTC exposure and can create persistent demand without requiring investors to manage the asset directly. The recovery is also notable because it followed a sharp correction, two days of ETF outflows and a Federal Reserve rate hike. In the short term, continued inflows could strengthen Bitcoin’s support near recent trading levels and help it challenge the $87,350 September high. However, the sharp decline in daily inflows from nearly $999 million to $66 million signals weaker momentum. Bitcoin also remains about one-third below its record high, so traders should not treat the streak as confirmation of a full trend reversal. A renewed outflow cycle, stronger interest-rate concerns or failure to break resistance could trigger consolidation or another pullback. Over the longer term, more than $57 billion in cumulative spot ETF inflows and nearly $108 billion in assets point to a durable institutional market structure. Sustained allocations would be structurally bullish for BTC, while a rapid reversal would weaken the signal. Overall, the current data support a bullish classification, but the immediate price impact is likely to depend on whether ETF demand remains consistent.