TL;DR
- Bitcoin ETFs: Weekly inflows hit $986.9M, driven heavily by IBIT, marking a third straight positive week and a +6.7% rise from the prior period.
- Ethereum ETFs: US spot Ethereum funds added $218.4M, extending their own three‑week inflow streak despite lower trading volume.
- Altcoin ETFs: Inflows into Solana, XRP, Hyperliquid, and other products dropped sharply by 73%-96%, reversing last week’s strong gains as institutional focus shifted back toward Bitcoin ETFs.
Bitcoin ETFs continued their strong momentum last week, pulling in nearly $1 billion as institutional appetite strengthened across major issuers. The latest surge kept Bitcoin within reach of the $80,000 level and extended a multi‑week inflow streak that has helped stabilize broader crypto sentiment. Combined data from Farside and CoinGlass shows that Bitcoin ETFs recorded $986.9 million in net inflows for the week ending September 4, marking a notable jump from $924.5 million the week prior.
Institutional Demand Concentrates Around IBIT
BlackRock’s IBIT remained the dominant force behind the weekly inflows, attracting $691.5 million and accounting for roughly 70% of the total. Despite strong capital rotation, Bitcoin ETF trading volume cooled to $14.5 billion from nearly $19 billion a week earlier, suggesting inflows were driven more by accumulation than by short‑term trading activity.
The inflow strength capped a robust August, when Bitcoin ETFs brought in $3.52 billion, their best monthly performance since September of 2025. The latest weekly figures also reflect a +6.7% increase from the prior week, according to CoinGlass, reinforcing the renewed conviction among institutional allocators.
Ethereum ETFs Stay Positive While Altcoin Products Cool
Ethereum ETFs also maintained steady traction. US spot Ethereum funds posted $218.4 million in inflows, marking their third consecutive positive week. Trading volume, however, dipped to $4.1 billion from $6.3 billion, mirroring the slowdown seen in Bitcoin ETF activity. The broader altcoin ETF segment told a different story.
Products tied to Ethereum, Solana, XRP, and Hyperliquid saw inflows fall sharply, dropping between 73% and 96% over the same five trading days. The reversal stands out because altcoin funds had posted triple‑digit percentage gains just one week earlier, highlighting a swift shift back toward Bitcoin ETFs as the preferred institutional vehicle.
Combined Crypto ETF Flows Top $1.2B
Together, Bitcoin and Ethereum ETFs attracted more than $1.2 billion during the week, underscoring the continued dominance of the two largest crypto assets in the ETF landscape. With Bitcoin ETFs now logging three straight weeks of inflows, investor positioning appears to be strengthening ahead of potential market catalysts later in September.
