Coinbase Falls 10% as Senate Blocks Clarity Act

The U.S. Senate refused on Sept. 15 to open debate on the crypto market rules bill the industry has spent years pushing.

The Digital Asset Market Clarity Act failed a procedural vote 49 to 50, 11 short of the 60 needed.

The act would split crypto oversight between two federal agencies. Everyday trading in bitcoin, ether and similar tokens would go to the Commodity Futures Trading Commission, and exchanges like Coinbase would register with it and keep customer money apart from their own. Tokens sold as investments would stay with the Securities and Exchange Commission.

The industry wanted that because the SEC has mostly policed crypto through lawsuits, leaving exchanges to guess which tokens count as securities.

Coinbase Carries the Most Exposure

Investors pulled $450.4 million out of U.S. spot bitcoin funds on Sept. 15, the biggest one-day withdrawal since June, and another $142.3 million out of ether funds. Coinbase stock fell 10.1% to $172.11 the same day.

Ruben Dalfovo, a strategist at Saxo Bank, said Coinbase has more riding on the bill than other large crypto companies, because market structure rules decide who has to register, which assets can trade and who is allowed to take part.

"Coinbase is most exposed to clearer market rules because trading and crypto participation directly affect its business."

Dalfovo told Cointelegraph that stablecoin issuer Circle and bitcoin holder Strategy depend more on stablecoin adoption and the bitcoin price. Circle fell 11.45% on Sept. 15 and Strategy fell 5.36%.

Coinbase also sells the crypto product that most resembles betting. Its prediction markets, routed through Kalshi, have been open in all 50 states since Jan. 28, 2026, covering sports, politics and Federal Reserve decisions. Those sports contracts sit in a separate fight, one Nevada won at a federal appeals court when three judges let the state enforce its gambling law against Kalshi.

Traders Price a Revival at 6%

Senator Cynthia Lummis of Wyoming, the Republican who led negotiations on the bill, told reporters "It's over," according to multiple accounts of the vote, and said the measure would not come back to the floor. Democrats withheld support over ethics language covering public officials who profit from crypto ventures.

Prediction market traders had money on the outcome. The Polymarket contract on whether the act is signed into law in 2026 now trades at 6%, after $21.4 million in volume since it opened on Jan. 11, 2026.

Congress is scheduled to adjourn on Dec. 18, 2026. That contract resolves on Dec. 31.

Treat gambling as entertainment you pay for. 18+, and if it stops feeling like entertainment, help exists at BeGambleAware and GamCare.