Circle minted $1 billion USDC in 24 hours, extending a $4.5b year‑to‑date supply jump and signaling heavy institutional dollar demand across Solana and centralized venues.

Circle has minted roughly $1 billion in new USD Coin (USDC) over the past 24 hours, a burst of issuance that signals a sharp, short‑term spike in demand for dollar liquidity across crypto rails, according to on‑chain analytics platform Lookonchain. TechFlow News, citing Lookonchain’s monitoring, reported that Circle executed two large mints totaling $500 million each, bringing 24‑hour issuance to $1 billion and adding to an already heavy minting pace on the Solana network in early 2026.

Lookonchain previously flagged similar surges, including a single‑day window where Circle minted about $1.25 billion USDC on Solana and another period where Circle and Tether together created roughly $17.25 billion in new stablecoins in the weeks following October 2025 market turbulence. OnchainLens data cited by Phemex shows Circle has minted about $3.25 billion in USDC on Solana alone over the past seven days, via repeated $250 million transactions, marking the issuer’s largest weekly stablecoin deployment on the network so far this year.

Size and speed point to institutional demand

The cadence and scale of Circle’s latest $1 billion mint make it unlikely to be driven purely by fragmented retail flows. Past episodes where Circle printed $500 million to $1.25 billion in hours have typically coincided with major liquidity provisioning for centralized exchanges, ETF custodians or basis/arbitrage desks, rather than grassroots trading cycles. MEXC and KuCoin coverage of earlier Lookonchain alerts noted that fast, billion‑dollar issuance bursts often precede or accompany deeper order books and wider USDC routing across derivatives venues, lending markets and perpetual futures platforms.

More broadly, data compiled by Artemis and reported by Analytics Insight indicate that USDC has recorded the largest net stablecoin supply increase of 2026 so far, adding about $4.5 billion in circulating supply through March as rivals such as USDT saw net outflows of roughly $2 billion. A separate dashboard from MEXC shows USDC’s market cap near $73 billion, with 24‑hour trading volume around $4.48 billion and over 250 applications using USDC as base collateral or a primary trading pair, underscoring its role as regulated liquidity plumbing for both centralized and decentralized markets.

What could be driving the new $1 billion?

While Circle does not publicly pre‑announce client‑driven mints, the pattern fits several potential institutional use cases: ETF or centralized‑finance inventory replenishment, on‑chain basis and arbitrage strategies, or large over‑the‑counter (OTC) settlements that require immediate, programmatic dollar liquidity. CoinMarketCap’s research arm recently highlighted “massive USDC minting and inflows to exchanges like Binance,” arguing that such patterns “signal strong capital preparation for trading or deployment rather than speculative retail chasing.”

Coinfomania, covering a prior 750 million USDC mint that kicked off 2026 on Solana, framed these large issuances as “strong liquidity signals” that draw institutional attention to where fresh stablecoin capital is being parked and deployed. Combined with March data showing USDC leading all major stablecoins in net new supply, the latest $1 billion mint suggests that, at least for now, deep‑pocketed players are choosing Circle’s regulated dollar rails as their primary channel for moving size into crypto markets.