Polymarket bettors currently price the passage of the CLARITY Act at a dismal 14%, down from 80% earlier this year. This legislative uncertainty creates a stark contrast with the institutional momentum arriving on September 16, when Circle launches the Circle Arc mainnet. While Washington debates the mechanics of digital asset oversight, the machinery of global finance is moving forward regardless of the legislative outcome.
The CLARITY Act vote represents a final, stuttering attempt to impose a unified federal framework on the U.S. stablecoin market. Meanwhile, the Arc mainnet launch features a validator set that reads like a roll call of the global financial establishment: BlackRock, DTCC, Visa, Mastercard, ICE, and Standard Chartered. These entities are not waiting for a green light from the Senate; they are building the infrastructure for a tokenized future on their own terms.
This divergence is occurring against a backdrop of global regulatory convergence. In the last 12 months, six major jurisdictions—the U.S., the EU, Japan, Hong Kong, the UAE, and Singapore—have enacted or finalized stablecoin frameworks. While the specifics vary, the core pillars are remarkably consistent: licensed issuers, 100% high-quality liquid reserves held at par, clear redemption rights, and rigorous AML/CFT disclosure obligations. Singapore remains the notable caveat, as its framework is finalized policy but still awaiting full legislative enactment.
The data suggests that the market has already moved past the speculative phase. Total stablecoin supply reached $308 billion in August 2026, a 14.3% year-over-year increase. More importantly, the utility has shifted. Monthly settlement volume hit $7.5 trillion in March 2026, surpassing the U.S. ACH network. B2B stablecoin payments are the primary driver, reaching $226 billion annualized—a 733% year-over-year growth rate. Institutions are using these assets to move value, not just to trade volatility.
Tokenized treasuries are seeing similar momentum, growing 600% year-over-year to reach $12-15 billion by August 2026. BlackRock’s BUIDL fund, with approximately $2.5 billion in assets under management, is expected to deploy on Arc, while the DTCC has committed to H2 2027 for DTC-custodied asset tokenization on the same network. These are not experimental pilots; they are multi-year capital commitments.
The U.S. regulatory environment, however, remains a friction point. The GENIUS Act, enacted in July 2025, introduces a strict yield ban on stablecoins, prohibiting issuers from paying interest to holders. This creates a clear competitive disadvantage for U.S.-regulated issuers compared to their international counterparts. Japan, for instance, restricts issuance to banks and trust companies while providing deposit insurance for yen-pegged stablecoins. Hong Kong, which granted its first licenses to Anchorpoint Financial and HSBC in April 2026, mandates redemption within one business day.
The gap between the 14% probability of the CLARITY Act passing and the massive institutional investment in infrastructure like Arc underscores a fundamental reality: capital flows toward clarity, not just toward the U.S. Congress. If the U.S. continues to prioritize restrictive measures like the yield ban while the rest of the world adopts standardized, functional frameworks, the center of gravity for stablecoin settlement will simply shift elsewhere. The institutions are already positioning their assets, building the rails that will carry the next generation of global finance, regardless of whether the Senate decides to participate.