TL;DR
- Bitcoin rebound: Bitcoin ETFs took in $159.5 million on September 17, ending two days of withdrawals. BlackRock’s IBIT led with $183.7 million, while Fidelity’s FBTC and VanEck’s HODL slipped.
- Ether outflows: Ethereum ETFs lost $39.3 million, a third straight session. Three-session outflows reached $405.4 million. BlackRock’s ETHA drove selling with $42.9 million, though Fidelity’s FETH and VanEck’s ETHV added $1.8 million each.
- Mixed altcoin flows: Solana ETFs saw zero net flows. Hyperliquid funds gained $4.3 million, XRP lost $5.15 million, and a single Zcash fund added $47 million.
Bitcoin ETFs pulled in $159.5 million on September 17, according to Farside data, ending a two-day run of heavy withdrawals. The turnaround came after $450.4 million left on September 15 and another $295.9 million exited the next day, a combined $746.3 million. BlackRock’s IBIT led the rebound with $183.7 million in inflows. Fidelity’s FBTC lost $16.6 million, and VanEck’s HODL shed $7.6 million, showing that not all Bitcoin ETFs moved in the same direction. The renewed demand gave Bitcoin support as it tried to recover levels lost after the Federal Reserve’s latest decision.
Ether ETFs Keep Bleeding
Ethereum ETFs recorded $39.3 million in net outflows on September 17, their third straight session of withdrawals. Selling pressure eased from $142 million on September 15 and $224.1 million on September 16. In total, $405.4 million has left Ethereum ETFs across those three sessions. BlackRock’s ETHA drove most of the outflows with $42.9 million, while Fidelity’s FETH and VanEck’s ETHV each attracted $1.8 million. Ether itself still rose 2% to about $2,470. The split shows a clear divergence: both BTC and ETH prices are climbing, but institutional ETF flows are returning only to Bitcoin ETFs.
Rebuild as Others Diverge
The Bitcoin ETFs recovery was concentrated in BlackRock’s IBIT, which drew $183.7 million. Other Bitcoin ETFs saw no significant movement. Solana ETFs reported zero net flows on September 17 after a $0.8 million inflow the prior day. Hyperliquid funds drew $4.3 million, split between $1.9 million for Bitwise BHYP and $2.4 million for 21Shares THYP, as the HYPE token traded at $88. XRP moved the other way. Coinglass data showed $5.15 million in net outflows, mostly from 21Shares TOXR and Canary XRPC. XRP funds lost about $5 million, reversing a small inflow from the day before.
Meanwhile, the single U.S. Zcash fund added nearly $47 million, its strongest showing yet in a month that has brought it more than $230 million. Over 30 days, Bitcoin ETFs remain nearly $2.5 billion ahead, while Ether funds are more than $1.5 billion ahead. For Bitcoin ETFs, the latest session offered a break from the prior selling. Still, Bitcoin ETFs face a mixed backdrop as ETH and XRP funds bleed. Traders will watch whether Bitcoin ETFs can build on the September 17 rebound.
