On May 1, Senators Thom Tillis and Angela Alsobrooks released the final compromise text for the CLARITY Act’s stablecoin yield provisions. Within minutes, Coinbase CEO Brian Armstrong posted on X: “Mark it up.”
Polymarket odds for the CLARITY Act becoming law in 2026 jumped from 46% to 64% within hours. Circle stock surged 19.9% in a single session. Coinbase gained 6.1%. Bitcoin broke above $80,000 for the first time since January. The stablecoin fight that had paralysed the most important crypto bill in US history for four months is over. The clock is now ticking on everything else.
What Changed?
The stablecoin yield fight was the single biggest obstacle blocking the CLARITY Act. It consumed months of negotiation and personally derailed the bill when Armstrong pulled his support in January, forcing Senate Banking Committee Chair Tim Scott to cancel a scheduled markup.
The dispute was about whether crypto companies should be allowed to pay interest on stablecoin balances. Banks said no. They argued that if USDC offers 4% and a savings account offers 0.5%, deposits flee the banking system. The GENIUS Act, signed in July 2025, already banned stablecoin issuers from paying yield directly on reserves. But it was unclear whether exchanges like Coinbase could pay rewards to users through other mechanisms.
The Tillis-Alsobrooks compromise draws a clear line. Crypto companies cannot offer any interest or yield that is “economically or functionally equivalent” to a bank deposit. That is a win for banks. But the compromise preserves the ability to offer rewards tied to real activity: transactions, payments, transfers, and providing liquidity in DeFi protocols. That is a win for Coinbase.
Coinbase Chief Policy Officer Faryar Shirzad summed it up: “In the end, the banks were able to get more restrictions on rewards, but we protected what matters.”
Why Did Armstrong’s Two Words Matter So Much?
Because Armstrong single-handedly killed the bill in January, and everyone knows it.
When he pulled Coinbase’s support on the eve of the markup, the committee postponed indefinitely. Negotiations restarted from scratch. The bill lost four months of momentum during a legislative window that was already tight.
“Mark it up” is not just an endorsement. It is Armstrong telling the Senate that the company that blocked the process is now clearing the way. Without Coinbase’s support, the bill could not move. With it, the path to a committee vote reopens.
The market understood this immediately. The 15-percentage-point jump on Polymarket in 24 hours is one of the sharpest single-event repricings in the contract’s history. That kind of move reflects distributed-bettor consensus on legislative outcomes, which tends to be a stronger forward indicator than analyst commentary.
Why Did Circle Surge 20%?
Circle issues USDC. The compromise formally positions stablecoins as payment tools rather than yield-bearing instruments. That framing is exactly what Circle has been lobbying for since 2024. Under the new rules, USDC becomes the default regulated digital dollar for payments, settlements, and institutional transactions, backed by the legal clarity that enterprises need before integrating it into their systems.
10x Research founder Markus Thielen said Circle is “widely seen as a potential beneficiary of clearer rules, particularly if stablecoins are formally positioned as payment tools rather than yield-bearing assets.” That sentence describes the compromise word for word.
Circle’s stock closed at $119.53, up 19.9% on the day. It is now up 50.7% year-to-date. For a company that went public barely a year ago, that kind of move on a single legislative development shows how much the market has been waiting for regulatory clarity.
What Still Needs to Happen?
A lot. The compromise removed the biggest obstacle, but several hurdles remain before the bill reaches Trump’s desk.
The Senate Banking Committee needs to schedule and complete a markup. Chairman Tim Scott said he has all 13 Republican votes and is targeting the week of May 11. If the markup happens that week, the bill advances to the Senate floor.
The Senate floor vote needs 60 votes for cloture. Democrats must participate. The stablecoin compromise helps because it was co-authored by Democrat Angela Alsobrooks. But outstanding issues around ethics provisions and DeFi developer liability still need resolution.
After the Senate passes its version, it must be reconciled with the House version that passed in July 2025 and the Senate Agriculture Committee’s own draft from January. Then Trump signs it.
Galaxy Research’s Alex Thorn warned that the equity repricing “may be running ahead of the actual procedural odds.” He estimated overall passage probability at “roughly 50-50, and possibly lower” even after the compromise, citing the sheer number of steps remaining under severe time pressure.
What Are Banks Doing Now?
Pushing back. Major bank trade groups said this week that the proposed yield language “falls short” of a full prohibition on stablecoin rewards. They plan to share suggested edits with lawmakers in the coming days.
Senator Tillis responded directly: “Some in the banking industry may not want either of these things to happen, and we respectfully agree to disagree.”
The banking lobby has significant influence on Capitol Hill. If they convince even two or three moderate senators that the compromise is too loose, the floor vote math changes. The next two weeks will determine whether the banks accept the deal or try to blow it up.
JPMorgan analysts, interestingly, sit on the other side. They described CLARITY Act passage as a “key positive catalyst” for digital asset markets, projecting a potential institutional inflow cycle similar to what followed the Bitcoin ETF approvals in 2024. The same bank whose lobby arm is fighting the bill has analysts telling clients to position for it passing.
What Does 64% Actually Mean?
It means Polymarket bettors see roughly a two-in-three chance the CLARITY Act becomes law in 2026. That also means they see a one-in-three chance it does not. Those are not comfortable odds for an industry that has spent over $100 million and four years getting to this point.
The Senate returns May 11. The Memorial Day recess starts May 21. That gives the Banking Committee roughly 8 working days to mark up the bill. If it clears committee, the full Senate vote follows. If it does not, the bill enters a legislative black hole of midterm politics and competing priorities.
Armstrong said “mark it up.” The market repriced. The question is whether the Senate moves as fast as Polymarket thinks it will.
Disclaimer: This article is for informational purposes only and does not constitute financial, investment, or legal advice. Always conduct your own research before making any investment decisions.
