The GENIUS Act’s one-year implementation deadline passed on July 18, 2026, without any final regulatory rules for stablecoins being enacted, leaving major issuers and the broader market operating in a state of uncertainty.
Regulatory delays persist as market expands
Eight regulatory proposals remain unfinished across several federal agencies, despite a statutory requirement to finalize rules within one year of the Act’s signing. Currently, no agency has completed its obligations under the legislation, and the process shows no clear sign of resolution.
Meanwhile, the total supply of stablecoins grew by 18.6% over the past year, climbing from $259.7 billion to $308.1 billion. On-chain data collected July 19 indicates the market briefly peaked above $320 billion in May before settling just over $300 billion ahead of the regulatory deadline.
The Office of the Comptroller of the Currency (OCC) introduced a wide-ranging proposal in March, addressing reserves, capital requirements, and custody standards. The Federal Deposit Insurance Corporation (FDIC) and the National Credit Union Administration (NCUA) presented distinct approaches for prudential oversight and licensing, while the US Treasury Department focused primarily on state-level regulatory coordination in its April proposal.
Market share in the stablecoin sector remains highly concentrated. Tether’s USDT and Circle’s USDC collectively account for approximately 83% of circulating stablecoins. Any forthcoming rules will therefore have direct consequences for these two dominant issuers. Notably, World Liberty Financial’s token, USD1, grew into the fifth-largest stablecoin after only a year in limited circulation.
| Stablecoin | Market Share (%) | Status (July 2026) |
|---|---|---|
| USDT | ~50 | Operational, awaiting rules |
| USDC | ~33 | Operational, awaiting rules |
| USD1 | N/A | Grew to 5th-largest |
Emergence of new stablecoins amid uncertainty
The lack of finalized regulation has not deterred innovation. Over the first year of the GENIUS Act, a number of institutional stablecoins expanded their presence. PayPal launched PYUSD; BlackRock introduced BUIDL; Ripple rolled out RLUSD; and Paxos issued USDG—all during a period when regulatory frameworks remained incomplete.
These issuers built significant market share while the rules designed to guide their operations were still undergoing agency review.
Mini dictionary: GENIUS Act, the first comprehensive US federal law targeting payment stablecoin regulation, introduced requirements for reserves, licensing, redemption timelines, and capital standards, with oversight from multiple federal agencies.
Congress structured the GENIUS Act so that all provisions automatically take effect on the earlier of January 18, 2027, or 120 days after final rules are published by regulators, regardless of how incomplete the process remains.
Key provisions from draft rule proposals specify that stablecoin issuers must hold reserves one-to-one in cash and short-term treasuries, with redemptions processed within two business days and a $5 million capital requirement. However, since these rules remain in draft form, they do not yet have the force of law.
Challenges and new timelines for issuers
Stablecoin issuers face differing exposure to the proposed regulations, depending on their operational structure. Circle’s USDC, for example, may face stricter capital and reserve requirements once rules are finalized. Tether’s launch of USAT, aimed at US regulatory compliance, also reflects efforts to anticipate new standards now postponed at least another six months.
No agency issued a final rule before September 20, 2026, which locks January 18, 2027, as the date when the GENIUS Act will fully take effect, even if agencies remain behind on rulemaking.
The stablecoin market added $48 billion in new supply while regulatory uncertainty persisted, highlighting the scale of trading and settlements occurring without finalized US rules.
Stablecoins underpin activity on every decentralized exchange and power much of the crypto market’s infrastructure, all while operating in the absence of a concrete federal legal framework. The sector’s significant growth underlines ongoing demand despite protracted delays in regulation.
