U.S. spot Bitcoin ETFs saw $999M net inflows and Ether ETFs added $270M on Sept. 21

11h agoSep 22, 2026, 7:21 AM UTCBy ClusterWire.news· AI-assisted news brief

U.S. spot Bitcoin ETFs recorded $999 million in net inflows on Sept. 21, according to SoSoValue, with BlackRock’s IBIT leading at $381 million ^[1] ^[2] ^[3] ^[4].

Spot Ether ETFs added $270 million in net inflows on Sept. 21, including $110 million into BlackRock’s ETHA, per the same SoSoValue-based figures ^[1] ^[4].

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Article sources

Sources

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1
US spot Bitcoin ETFs see $999M net inflows, Ether ETFs add $270M
Wu Blockchain• Sep 22, 2026
2
BlackRock’s IBIT leads $999M in US spot Bitcoin ETF inflows
Crypto Briefing• Sep 22, 2026
3
$999 Million Floods Into Bitcoin ETFs as BTC Price Explodes Higher
Coinpaper• Sep 22, 2026
4
Bitcoin ETF Inflows Hit $999M as Ether Funds Add $270M
CoinoMedia• Sep 22, 2026

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