US Crypto Market Rallies as Senate Weighs Landmark CLARITY Act

America's crypto market opened the week with its strongest day in months, and the timing is no accident. Traders are positioning ahead of a US Senate vote that could reshape how digital assets are regulated for years to come.

The global crypto market capitalization climbed roughly 3% to about $2.77 trillion on September 15, according to CoinGecko data. Bitcoin pushed back toward the $78,000 level, while Ethereum reclaimed the $2,500 mark, and total 24-hour trading volume topped $90 billion.

The rally wasn't confined to the two largest assets. Tokenized real-world-asset (RWA) tokens posted the sharpest gains across the industry, while stablecoins and decentralized finance also moved higher even as parts of the broader market cooled. The Crypto Fear and Greed Index jumped to 69, firmly in "Greed" territory and up sharply from the previous week, signaling that US investor sentiment has turned decisively bullish after weeks of sideways trading.

Much of that optimism traces back to Washington. The Senate is scheduled to hold a cloture vote on the Digital Asset Market Clarity Act, a sweeping market-structure bill that would finally spell out which federal regulator oversees which digital assets. The procedural vote requires 60 senators to agree to move the bill to full floor debate.

The stakes are high. The legislation already cleared the House by a wide, bipartisan 294–134 margin in 2025 and advanced out of the Senate Banking Committee on a 15–9 vote in May. Industry resistance has also faded: Coinbase, once a vocal holdout over provisions affecting its stablecoin revenue, dropped its opposition and publicly urged senators to pass the bill. Still, a handful of Democratic holdouts have raised concerns over ethics provisions and developer liability rules, leaving the outcome genuinely uncertain heading into the vote.

A successful cloture vote wouldn't make the CLARITY Act law on its own — it would only open the door to floor debate, amendments, and an eventual final vote. But market participants are treating it as a bellwether. Clearing the 60-vote threshold would signal that a durable, bipartisan path to comprehensive crypto regulation is finally within reach, giving builders and institutional investors the regulatory certainty they've been asking for.

A failed vote would send the opposite signal. With the legislative calendar tightening ahead of the November midterms, analysts warn that a defeat could push comprehensive crypto market-structure legislation off the table until 2027 or later.

For now, the combination of a resurgent market and a pivotal regulatory test has made September 15 one of the most closely watched days of the year for US crypto investors — and a reminder of just how tightly intertwined price action and policy have become.