U.S. spot Bitcoin ETFs suffered their worst single session since June on Tuesday, recording $450.4 million in outflows as the Senate narrowly blocked debate on landmark crypto legislation, re
U.S. spot Bitcoin ETFs suffered their worst single session since June on Tuesday, recording $450.4 million in outflows as the Senate narrowly blocked debate on landmark crypto legislation, renewing questions about when Washington will deliver the regulatory clarity the market has been waiting for.
The selloff hit every major fund. Fidelity’s FBTC led with $214.8 million in withdrawals, followed by BlackRock’s IBIT at $161.7 million and Grayscale’s GBTC at $44.1 million, according to Decrypt. Taken together, Tuesday marked the heaviest single-day Bitcoin ETF outflow since June 24 — a session that echoed the worst week on record for these funds earlier this year.
Total reported U.S. spot Bitcoin ETF outflows for the session reached $450.4 million, a single-source figure from Decrypt that the available evidence does not independently corroborate at the fund-data level. For related coverage, see Bitcoin ETFs See Worst Week on Record as Outflows Surge.
Reported U.S. spot Bitcoin ETF outflows $450.4 million Reported by Decrypt for the session; the available evidence supports timing, not a proven causal link to the vote.The losses extended well beyond Bitcoin. Ethereum ETFs shed $142.3 million in the same session, bringing combined Bitcoin, Ethereum, and XRP ETF outflows to roughly $593 million for the day. That combined figure puts Tuesday alongside the multi-asset $1.26 billion outflow week that rattled these products earlier this year. For related coverage, see BlackRock Bitcoin and Ethereum ETFs See $350M Inflows.
The backdrop was a procedural defeat in the U.S. Senate. On September 15, Senate vote 234 failed 49-50, blocking cloture on the motion to proceed to H.R. 3633, the Digital Asset Market Clarity Act. Sixty votes were needed to advance the bill. For related coverage, see Bitcoin Spot ETFs Post $296M Weekly Outflow, March 23–27 | Ethereum ETF Data.
Senate vote 234 49-50 Rejected cloture motion to proceed to H.R. 3633 on September 15.H.R. 3633 would have established a joint SEC and CFTC regulatory framework for the offer and sale of digital commodities, according to the official Senate roll-call index. Its supporters pitched it as the first comprehensive attempt to resolve the longstanding jurisdictional dispute between the two agencies over crypto assets. For related coverage, see Bitcoin Spot ETFs See $231M in Outflows as Ether ETFs Lose $30M.
The vote and the ETF outflows occurred in the same news cycle. The available evidence establishes timing, not causation; broader market conditions may have also contributed. But a one-vote defeat for the most significant digital-asset bill in years is exactly the kind of policy shock that prompts institutional money to move to the sidelines. Prior Bitcoin ETF outflow episodes have coincided with regulatory uncertainty in Washington, reinforcing that pattern.
The immediate question is whether Tuesday’s outflows represent a one-session reaction or the start of a sustained withdrawal trend. Earlier weekly outflow episodes this year reversed quickly once the triggering uncertainty faded; whether that holds depends partly on whether the Clarity Act finds a path forward in the Senate.
No confirmed timeline for a revote or amended bill currently exists. The one-vote margin suggests potential, but Senate scheduling and shifting coalition dynamics make the next procedural step unclear. Bitcoin was trading at $76,425 at press time, with the Crypto Fear & Greed Index at 50, a Neutral reading that suggests the market has not yet tipped into full panic mode.
The Senate came one vote short of opening debate on the most significant crypto regulatory bill in years. Is that close enough to revive — or does it signal the coalition simply isn’t there?
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.
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