Circle Mints $1B USDC on Solana, Pushing 2026 Gross Issuance to $64.25B

The July 2026 Mint in Detail

Circle executed a fresh $1 billion USDC mint on Solana around July 1, 2026, reported across multiple sources on July 1–2 . This followed a separate $1 billion mint in mid-June and a $500 million mint on June 8 .

Broader 2026 Minting Pattern on Solana

Cumulative gross issuance grew dramatically across 2026:

Solana's Share of Global USDC Supply

On June 8, 2026, after a $500 million mint, Solana reached 10.3% of global USDC supply — its highest recorded share — as Ethereum's allocation contracted . As of late June 2026, total USDC circulation across all chains stood at approximately $73.6 billion . By mid-2026, Solana hosted roughly $10–12 billion in native SPL USDC, representing about 20–25% of Circle's total float according to some estimates , though the 10.3% figure from on-chain data appears to be the more commonly cited share.

Solana ranks as the second-largest USDC chain globally, behind Ethereum and ahead of Base, Arbitrum, and Polygon . Solana also dominates USDC transaction volume: it processed 22.7 million USDC transactions in the week ending June 21, 2026 — 31.8% of all USDC transfers across every blockchain — driven by salary payments, retail P2P, and DeFi .

Network Advantages Attracting Stablecoin Capital

Solana's technical architecture provides clear advantages for stablecoin issuers and users:

• Speed: ~400ms block times with sub-second finality; real-world throughput of 1,000–4,000+ TPS (theoretical max 65,000) .
• Cost: Transaction fees under $0.001 — typically 10–50x cheaper than Ethereum mainnet .
• Proof of History (PoH): A clock mechanism that orders transactions before consensus, enabling parallel processing and high throughput .
• Institutional focus: In 2026, Solana's roadmap prioritizes predictable finality, execution integrity, and institutional resilience, positioning it as infrastructure for next-generation onchain finance .
• Ecosystem growth: Stablecoin market cap on Solana reached ~$14 billion by late January 2026, up >75% year-over-year, making it the fastest-growing stablecoin ecosystem of any blockchain . RWA (real-world asset) TVL grew 58% to over $2.5 billion in Q1 2026 .

Overall Stablecoin Sector Growth

USDC total circulation stood at ~$73.6 billion as of late June 2026 . Circle natively supports USDC on 34 blockchain networks as of May 2026 . Solana's accelerating share reflects a broader trend: stablecoins are increasingly minted on high-throughput, low-cost chains for payments, DeFi, and institutional settlement, with Solana capturing a disproportionate share of that new issuance. The $64.25 billion in gross 2026 issuance on Solana alone — a number that "would have sounded absurd even a year ago" — underscores the pace of structural migration in stablecoin liquidity.