Stablecoin Total Supply by Issuer
Quarter-end aggregate supply by stablecoin issuer ($B USD), stacked. USDT sustained growth through the 2022-2023 bear; USDC peaked Q1-Q2 2022 at $52B then declined sharply through the Silvergate / SVB crisis in early 2023; Ethena USDe launched Feb 2024 and crossed $10B by 2025-Q3; the May 2026 total ($320B) is editor-verified. Initial v1 estimates; verify each quarter against DefiLlama Stablecoins.
Stablecoin Transfer Volume vs Visa
Monthly on-chain stablecoin transfer volume (adjusted to exclude MEV, sandwich attacks, and same-entity wallet moves) compared with Visa monthly purchase volume. The crossover happened in early 2024 alongside the spot BTC ETF launch and the broader stablecoin acceleration; the gap widened to roughly 3x by Q3 2025. Caveat: stablecoin volume is treasury / DeFi / CEX-internal-heavy versus Visa's consumer-spending focus, so direct comparison is imperfect. Initial v1; methodology varies across data providers.
Stablecoin Distribution by Chain (USDT and USDC)
Tether (USDT)
$190BCircle (USDC)
$78BPer-chain supply split for the two dominant US-dollar stablecoins, May 2026 snapshot. USDT is Tron-dominant (~50%) reflecting EM-dollar use cases (Argentina, Venezuela, Russia, Asia remittance corridors). USDC is Ethereum-dominant (~53%) with strong Base growth (Coinbase distribution effect) and Solana penetration. Initial v1; verify against DefiLlama Stablecoins per-chain breakdown.
Stablecoin Reserve Composition
Tether (USDT)
BDO Italia · Quarterly · last 2026-03-31
$191.0B
total reserves
Supply
$183.0B
Excess
$8.2B
US Treasury bills (direct holdings)
$117.0B · 61.3%
Direct T-bill holdings per BDO Q1 2026 attestation. Tether is the 17th largest holder of US Treasuries globally.
Overnight reverse repurchase agreements
$19.3B · 10.1%
Overnight repo against US Treasuries.
Term reverse repurchase agreements
$4.7B · 2.5%
Term repo, also Treasury-collateralized. Combined Treasury-linked exposure totals approximately $141B.
Money market funds and cash
$8.0B · 4.2%
Institutional MMFs (BlackRock and similar) plus cash at banking partners (Cantor Fitzgerald the primary T-bill custodian).
Bitcoin
$7.0B · 3.7%
Tether strategic BTC reserve. Disclosure aligns with BitcoinTreasuries.NET listing.
Gold
$20.0B · 10.5%
Physical gold. Q1 2026 generated $1B+ in gold profits per Tether disclosure. Largest single non-Treasury reserve line.
Secured loans
$8.0B · 4.2%
Overcollateralized loans to affiliated entities. Historically the most-debated reserve category.
Other investments
$7.0B · 3.7%
Equity stakes (Northern Data, Bitdeer, Rumble, Adecoagro), venture investments, and other holdings.
Circle (USDC)
Deloitte & Touche LLP · Monthly · last 2026-04-30
$78.0B
total reserves
Supply
$77.0B
Excess
$1.0B
US Treasury bills (Circle Reserve Fund managed by BlackRock)
$62.0B · 79.5%
Held in a SEC-registered 2a-7 government money market fund (USDXX) custodied at BNY Mellon. Roughly 80%+ of total reserves.
Overnight US Treasury repurchase agreements
$9.0B · 11.5%
Held within the Circle Reserve Fund.
Cash at regulated US banks
$7.0B · 9.0%
GSIB and partner US banks (BNY Mellon, Citizens Trust, Cross River Bank, Customers Bank, New York Community Bank).
Reserve composition for the two largest fiat-backed stablecoins, latest published attestations. Tether's reserves are a mixed portfolio (T-bills 60% plus repo, MMF, cash, BTC, gold, and secured loans); Circle's reserves are pure US Treasury bills and repo (held in a regulated 2a-7 money-market fund managed by BlackRock) plus cash at named US banks. Both issuers carry small excess reserves. Initial v1; verify against the most recent BDO / Deloitte attestations before publication.
Real-World Stablecoin Payment Integrations
| Partner | Stablecoin | Category | Launch | Status |
|---|---|---|---|---|
| Visa | USDC, EURC | Card network | 2021-03 pilot, 2025-12 US launch | Operational |
| Mastercard | USDC, EURC, USDG, PYUSD, FIUSD, USDP | Card network | 2023 pilot, 2025 expanded | Operational |
| PayPal / Venmo | PYUSD | Fintech | 2023-08, 70-market expansion 2026-03 | Operational |
| Stripe | USDC | Payment processor | 2024-10 Bridge acquisition ($1.1B), closed 2025-02 | Operational |
| Shopify | USDC on Solana | Merchant rail | 2023-08 | Operational |
| Worldpay (with BVNK) | USDC, others | Payment processor | 2025 H2 pilot | Operational |
| Robinhood (USDG) | USDG (Paxos consortium) | Fintech | 2024-11 Global Dollar Network launch | Operational |
| Cash App (Block) | USDC on Solana | Fintech | Announced 2025-11, launch early 2026 | Operational |
| X Money (X / xAI) | TBD (Visa partnership confirmed) | Social | Announced 2025-01, public beta 2026-Q2 | Planned |
| Western Union | USDPT (own coin, Solana) | Remittance | 2026-05 launch | Operational |
| MoneyGram | USDC on Stellar | Remittance | 2022-06 launch, 2024 Colombia app | Operational |
| Cantor Fitzgerald | USDT (custody) | Institutional | Multi-year, expanded 2024-2025 | Operational |
Major real-world stablecoin payment integrations. Visa and Mastercard run cross-border merchant settlement rails using USDC and EURC. PayPal, Cash App, and Robinhood expose stablecoins to consumer wallets. Stripe (post-Bridge acquisition) and Worldpay handle programmable B2B payouts. Western Union and MoneyGram pilot stablecoin remittance corridors. The Cantor Fitzgerald row surfaces Tether's primary US T-bill custodian connection, which became politically salient after Howard Lutnick's appointment as Commerce Secretary. Initial v1; list likely incomplete.
Global CBDC Tracker
Live
4
Pilot
2
Research
3
| Country | Project | Type | Status | Launch |
|---|---|---|---|---|
| 🇨🇳China | e-CNY | Retail + Wholesale | Live | 2020 pilot, 2026 expanded |
| 🇧🇸Bahamas | Sand Dollar | Retail | Live | 2020-10 |
| 🇳🇬Nigeria | eNaira | Retail | Live | 2021-10 |
| 🇯🇲Jamaica | JAM-DEX | Retail | Live | 2022-07 |
| 🇮🇳India | Digital Rupee (e-INR) | Retail + Wholesale | Pilot | 2022-11 |
| 🇧🇷Brazil | Drex | Retail + Wholesale | Pilot | 2023-07 pilot |
| 🇯🇵Japan | Digital Yen | Retail | Research | TBD |
| 🇬🇧United Kingdom | Digital Pound | Retail | Research | TBD |
| 🇦🇺Australia | eAUD | Wholesale | Research | TBD |
| 🇰🇳Eastern Caribbean | DCash | Retail | Paused | 2021-03 |
| 🇺🇸United States | (Retail CBDC banned) | Retail | Banned | TBD |
| 🇷🇺Russia | Digital Ruble | Retail + Wholesale | Research | 2023-08 pilot, 2026-09 mandatory |
| 🇰🇷South Korea | Project Hangang (Digital Won) | Retail + Wholesale | Research | 2025-04 Phase 1, 2026-03 Phase 2 |
| 🇪🇺European Union | Digital Euro | Retail | Research | TBD |
Central bank digital currency status by country. China e-CNY is the most-advanced major CBDC by transaction volume and mandatory-acceptance footprint. The defining 2025 policy event is Trump EO 14178 (January 23, 2025) explicitly prohibiting a US retail CBDC, paired with the simultaneous GENIUS Act framework for private US stablecoins, an explicit choice to let private issuers (USDC, USDT, PYUSD) carry the dollar-on-rails role. EU and UK retail CBDC decisions are pending. Initial v1; sourced from Atlantic Council CBDC Tracker and central bank disclosures.