US spot bitcoin ETFs printed −$450.4 million on Tuesday 15 September 2026. IBIT printed −$161.7 million. FBTC printed −$214.8 million. BITB printed −$12.4 million. ARKB printed −$17.4 million. GBTC printed −$44.1 million. BTCO, EZBC, BRRR, HODL, BTCW, MSBT, and BTC printed 0. That follows Monday 14 +$159.9 million (IBIT +$134.3 million / FBTC +$53.3 million / ARKB −$42.0 million). Monday 14 is unrevised. Same-session US spot ether ETFs printed −$142.3 million (ETHA −$98.0 million / ETHB +$12.4 million / FETH −$7.2 million / ETHW −$34.4 million / TETH +$2.4 million / ETHE −$17.5 million). Same SKU — not a second Brief item. Cumulative US spot bitcoin ETF flow is +$54.933 billion (Farside published Total 54,933). Primary is the Farside bitcoin table (https://farside.co.uk/btc/). Ether table is https://farside.co.uk/eth/. Friday 28 −$201.9 million stays the earlier companion card — not a leftover reprint. Monday 31 +$216.7 million is stale. As-of Tue 15 Sep 2026. House copy only. No third-party press reprints on this page. Humans who want the paid desk go to /community. Feed is $25. Reserve is $149. No invite URL belongs on this page. Liquid State.