Stablecoin ratings highlight growing quality divide

TLDR

Recent S&P Global stablecoin ratings show a widening gap between highly regulated, transparent issuers and market dominant tokens, signaling that dollar-pegged coins carry very different levels of risk.

1. S&Ps latest Stablecoin Stability Assessments rank USDC, EURC and similar tokens as strong, while USDT, TUSD and USDe sit at the weakest level.
2. Market adoption still favors weaker rated coins like USDT, creating a disconnect between institutional quality scores and where most liquidity lives.
3. Regulators and institutions are focusing on strongly rated, well-backed stablecoins, which could gradually shift flows and raise scrutiny on weaker issuers.

Deep Dive

1. What The New Ratings Show

S&P Global updated its Stablecoin Stability Assessment framework and now finds six of 11 reviewed stablecoins have an adequate or above ability to hold their peg to fiat currency.

On a 1 to 5 scale, where 1 is very strong and 5 is weak, Euro Coin (EURC), USD Coin (USDC), Global Dollar (USDG) and Paxos USD (USDP) all score 2 strong in S&Ps Stablecoin Stability Assessments.

By contrast, Tether (USDT), TrueUSD (TUSD) and Ethenas USDe are rated 5 weak, with S&P explicitly warning that significant differences remain across stablecoins which can increase the risk of de-pegging.

2. Adoption Versus Quality

Despite its weakest rating, USDT remains the dominant stablecoin, with about 187 billion in circulation and roughly 59 percent of total stablecoin market cap as of June 2026, as noted in S&Ps update.

This highlights a quality divide. Regulated, transparent issuers like Circle and Paxos earn strong scores, but traders and payment users still cluster around USDT because of liquidity, listing breadth and network effects.

In practice, it means the safest coins by institutional standards are not yet the ones most people use day to day.

3. Regulation And What To Watch

Policy work is increasingly aligned with S&Ps concerns. The US GENIUS Act and UK discussions at the UK US Financial Regulatory Working Group call for one to one backing with high quality liquid assets, segregated reserves and robust redemption rights in their joint stablecoin statements.

As frameworks harden, institutional demand may tilt further toward strongly rated, highly transparent stablecoins, while weaker issuers face more scrutiny on reserves, governance and legal structure.

For crypto users, key signals to watch are rating changes, reserve disclosures, regulator commentary and whether exchanges or protocols start to prefer specific high grade stablecoins for collateral and payments.

Conclusion

Stablecoin ratings now clearly separate a tier of regulated, well disclosed issuers from weaker, opacity driven models, even as liquidity remains concentrated in the latter. Over time, tighter regulation and institutional preferences could narrow this gap, making issuer quality and ratings an increasingly important part of any decision about which dollar to hold or use on chain.