The global stablecoin market stood at roughly $291 billion in total value as of August 28, 2026, under CoinGecko's tracking methodology, with USDT and USDC together accounting for more than 80% of that totalCITE:E1. Tether's USDT commands roughly $183 billion, a market share near 60%, while Circle's USDC holds about $74 billion, near a quarter of the marketCITE:E2. Both are fiat-reserve stablecoins backed 1:1 by dollar-denominated assets, distinct from crypto-overcollateralized tokens such as DAI and USDS, and from synthetic yield-bearing tokens such as USDe, which carry different risk profilesCITE:E2.
| Stablecoin | Market Value | Approx. Market Share |
|---|---|---|
| USDT (Tether) | ~$183B | ~60% |
| USDC (Circle) | ~$74B | ~25% |
| Total market | ~$291B | USDT+USDC >80% |
Stablecoin issuers earn interest on reserves — mostly short-term US Treasury bills — while holders of the tokens themselves receive no interest at allCITE:E3. Tether reported delivering more than $10 billion in profit for 2025, alongside $6.3 billion in excess reserves and a record $141 billion in exposure to US Treasury holdingsCITE:E3. In an environment of elevated interest rates, that structure lets an issuer collect yield on customer dollars it holds while paying nothing back to the customers who hold the tokensCITE:E3.
Circle listed on the New York Stock Exchange under the ticker CRCL in June 2025, turning stablecoin issuance into a publicly reported business lineCITE:E4. Circle's combined revenue and reserve income reached $2.7 billion for full-year 2025, up 64% year over yearCITE:E4. That growth is tied directly to interest income on reserves, meaning any decline in interest rates would compress the margin that issuers like Circle depend onCITE:E4.
The United States signed the GENIUS Act into law on July 18, 2025, as P.L. 119-27, becoming the country's first federal law governing payment stablecoinsCITE:E5. The law requires issuers to hold full 1:1 reserves in safe assets, disclose reserve composition every month, and restrict issuance to regulated entitiesCITE:E5. Issuers with circulation exceeding $50 billion must additionally file audited annual reports, a threshold that captures both Tether and Circle given their current market valuesCITE:E5.
The European Union's Markets in Crypto-Assets Regulation (MiCA) is already in effect, and major exchanges have delisted USDT for European Economic Area users lacking authorization under the frameworkCITE:E6. Hong Kong's Stablecoins Ordinance took effect on August 1, 2025, requiring any issuer of fiat-referenced stablecoins to obtain a license from the Hong Kong Monetary AuthorityCITE:E6. Together with the GENIUS Act, these frameworks show major jurisdictions converging on licensing and reserve rules for stablecoin issuers within the same periodCITE:E5CITE:E6.
Stablecoins are used primarily to price and settle crypto trades, followed by cross-border payments and remittances, and as a dollar hedge in regions facing inflation or capital controlsCITE:E7. The cost gap is the core draw: a traditional remittance transfer commonly costs several tens of dollars per transaction, while a stablecoin transfer often costs less than $1 and settles within secondsCITE:E7.
Stablecoins carry two structural risks — depegging from their target value and opacity around reserve holdingsCITE:E8. The algorithmic token Terra UST collapsed in 2022, wiping out more than $50 billion in market valueCITE:E8. In 2023, USDC briefly fell to $0.87 after Circle disclosed $3.3 billion of its reserves were held at the failed Silicon Valley BankCITE:E8. Regulators have responded by pushing issuers away from voluntary attestations toward mandatory, audited reserve disclosure — the same direction reflected in the GENIUS Act's audited-report requirement for large issuersCITE:E8CITE:E5.
The numbers line up into a single structural story: a $291 billion market concentrated more than 80% in two fiat-backed issuersCITE:E1CITE:E2, whose combined business model — Tether's $141 billion Treasury exposure and $10 billion 2025 profit, Circle's $2.7 billion in rate-driven revenueCITE:E3CITE:E4 — depends entirely on holding customer dollars in interest-bearing government debt while paying holders nothing. The GENIUS Act's $50 billion audited-disclosure threshold and Hong Kong's licensing regimeCITE:E5CITE:E6 arrived only after Terra UST's collapse and USDC's 2023 depeg exposed how little independent verification existed around reserves that traders, remittance senders, and dollar-hedgers now rely on dailyCITE:E7CITE:E8.
The global stablecoin market stood at roughly $291 billion in total value as of August 28, 2026, under CoinGecko's tracking methodology, with USDT and USDC toge…
Stablecoin issuers earn interest on reserves — mostly short-term US Treasury bills — while holders of the tokens themselves receive no interest at allCITE:E3.
Circle listed on the New York Stock Exchange under the ticker CRCL in June 2025, turning stablecoin issuance into a publicly reported business lineCITE:E4.
The United States signed the GENIUS Act into law on July 18, 2025, as P.L.
The structural fact worth sitting with is that a $141 billion Treasury exposure and a $10 billion annual profit both flow to the issuer alone — holders of USDT and USDC get liquidity and dollar access, not yield. That asymmetry is precisely what the GENIUS Act's $50 billion audited-report threshold and Hong Kong's licensing regime now target, since both Tether and Circle sit above that line. The metric to watch next is whether audited reserve reports actually get filed on the law's schedule, and how Circle's $2.7 billion in rate-driven revenue holds up if interest rates decline — that single revenue line is the clearest read on whether the current business model survives a lower-rate environment.
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