# USD Coin (USDC): Circle's Regulated Dollar Stablecoin > Decentralized Finance Publication (decentralized-finance.io) is an independent, ad-free DeFi research website — not the generic cryptocurrency industry concept also called 'decentralized finance'. **Publisher:** Decentralized Finance Publication (https://decentralized-finance.io) **Author:** Decentralized Finance editorial team **Reviewed by:** Kaiser Khan, Editor in Chief **Category:** Stablecoins **Updated:** Apr 19, 2025 **Trust:** Independent, ad-free editorial research. No display advertisements, no paid protocol coverage, no affiliate-driven rankings. ## Summary USDC is a fully regulated, dollar-backed stablecoin issued by Circle, with $78.6B in circulation across 120+ chains and positioned as the institutional-grade alternative to USDT. USD Coin (USDC) is a fully regulated, dollar-denominated stablecoin jointly developed by Circle and Coinbase through the Centre Consortium. Launched in 2018, USDC is backed 1:1 by cash and short-dated US government obligations held in segregated custody accounts, with monthly attestation reports published by Grant Thornton. As of April 2025, USDC has $78.6 billion in circulation, making it the second-largest stablecoin globally and the leading regulated alternative to Tether's USDT. ## Reserve Structure and Regulatory Standing USDC is fully backed by cash held at regulated US financial institutions and short-term US Treasury bills. Unlike Tether, whose reserves have historically included commercial paper and secured loans, USDC's reserve composition has consistently prioritized liquid, investment-grade assets. Monthly attestation reports by independent accountants confirm that reserve assets equal or exceed USDC liabilities at the time of reporting. Circle, USDC's primary issuer, operates under US money transmission licenses in the states where it serves customers and is subject to US Bank Secrecy Act compliance requirements. This regulatory framework positions USDC as the preferred stablecoin for institutions, regulated entities, and jurisdictions where counterparty quality is a primary consideration. ## Multi-Chain Deployment USDC is deployed across more than 120 blockchains via both native issuance and bridged representations. The largest deployments are on Ethereum ($51.89B), Solana ($8.21B), Hyperliquid L1 ($4.87B), and Base ($4.35B), followed by Arbitrum ($2.34B) and Polygon ($1.75B). Circle's Cross-Chain Transfer Protocol (CCTP) enables native USDC to be burned on one chain and minted on another without the custody risk associated with traditional bridge wrapping. ## The March 2023 Depegging Event USDC experienced its most significant peg stress in March 2023, when Silicon Valley Bank (SVB) — where Circle held approximately $3.3 billion of USDC reserves — was seized by US regulators. USDC temporarily depegged to as low as $0.87 on secondary markets as uncertainty about reserve recovery spread. The peg was fully restored within days following confirmation that the FDIC would guarantee SVB deposits in full. The SVB event was a pivotal moment: it demonstrated both the vulnerability of fiat-backed stablecoins to traditional banking risk and the speed at which regulatory intervention can restore confidence. Circle subsequently diversified its banking relationships and reduced concentration at any single institution. ## USDC in DeFi and Institutional Finance - DeFi Collateral: Accepted as collateral on Aave, Compound, Maker, and virtually all major DeFi lending protocols due to its regulatory clarity. - Institutional Settlement: Used by regulated financial institutions for on-chain dollar settlement, payroll, and cross-border remittances. - Developer Ecosystem: Circle's programmable wallets and APIs make USDC a foundation for payment applications, crypto-backed cards, and fintech products. - Stablecoin Pairs: USDC/USDT and USDC/DAI are among the highest-volume pairs on Curve Finance, representing a critical source of stablecoin liquidity. ## Protocol Data — USDC (Source: DeFiLlama) The following metrics are sourced from DeFiLlama's stablecoin tracker. Data is approximate and subject to change. - Market Cap: $78.59B - Price: $1.00 - Total Circulating Supply: 78.60B USDC - 7-Day Change: -0.21% - 1-Month Change: -0.86% - Largest Chain: Ethereum (~$51.89B) - Second Largest: Solana (~$8.21B) - Category: Fiat-backed - Audits: Monthly attestations by Grant Thornton - Chains Deployed: 120+ ## Conclusion USDC occupies a distinct position in the stablecoin ecosystem — it is the most regulated and institutionally credible dollar stablecoin at scale. Its reserve transparency, regulatory compliance, and native multi-chain infrastructure make it the preferred choice for institutions, developers building payment products, and DeFi protocols seeking a counterparty-quality stablecoin. While its market cap has seen some softness relative to USDT recently, USDC's structural regulatory advantages position it well for a world in which stablecoin oversight becomes increasingly mandatory. ## Sources - [USDC on DeFiLlama](https://defillama.com/stablecoin/usd-coin): Live USDC market cap, chain deployment, and circulating supply data - [Circle — USDC](https://www.circle.com/usdc/): Official Circle USDC page with reserve reports and developer resources --- Canonical: https://decentralized-finance.io/article/usdc/ Markdown: https://decentralized-finance.io/article/usdc.md