HedgeCo.Net — U.S. spot Bitcoin and Ethereum ETFs recorded about $592 million of combined net outflows on September 15, with Bitcoin funds shedding $450.33 million and Ethereum funds $141.47 million, according to SoSoValue data as reported by BeInCrypto (via MetaTrader syndication) and CoinGabbar. The session was framed as the deepest single-day outflow in months for both complexes and landed as the CLARITY Act failed to advance in the U.S. Senate (coverage cited a 49–60 vote). CoinGabbar said Fidelity led Bitcoin redemptions at about $214.75 million with BlackRock about $161.69 million; BlackRock also led Ethereum outflows at about $97.97 million.
Even after the session, both complexes were still described as net positive for September month-to-date on the BeInCrypto tape (Bitcoin funds about $17.1 million MTD; Ethereum about $307.4 million MTD). Solana ETFs were the small green exception on CoinGabbar’s Sep 15 table at about +$1.35 million, while XRP ETFs printed flat. The prior session (Sep 14) had shown inflows—about $160 million into Bitcoin ETFs and $121 million into Ethereum ETFs—so the Sep 15 print reads as a sharp one-day reversal around the Senate setback rather than a month-long trend break on the sourced MTD figures.
This is a one-day flow print, not a structural de-allocation call. Mark the ?$450.33 million BTC / ?$141.47 million ETH / ~$592 million combined figures, the Clarity Act Senate context, the Fidelity/BlackRock redemption leadership, and still-positive September MTD as sourced. Do not invent price targets or claim the MTD positive figures have reversed. The allocator object is institutional ETF flow sensitivity to U.S. crypto-market-structure politics.