Circle minted approximately $3 billion in USDC on Solana during a 24-hour period around September 7, marking one of the largest short-term issuance bursts recorded for the stablecoin on the network. The activity consisted of repeated large treasury mints, including transactions of 250 million USDC, as Circle continued using Solana as a major issuance and settlement environment.
Activity can be tracked through the official USDC token address on Solana Explorer, which corresponds to the native USDC contract recognized by Circle. A 250 million USDC mint recorded on September 7 was also independently identified at the USDC Treasury, supporting the broader pattern of large issuance transactions during the period.
Gross Minting Does Not Equal Net Supply Growth
The $3 billion figure requires an important qualification because Circle uses a pre-mint system on Solana. USDC can be created and held at designated Circle-controlled addresses before being considered part of circulating supply. Tokens held in those pre-mint accounts do not enter official circulation until Circle authorizes their distribution to customers.
This means large treasury mints should not automatically be interpreted as $3 billion of new capital immediately entering Solana DeFi. Circle’s own data illustrates the distinction: global USDC circulation stood at approximately $74.28 billion on September 7, down slightly from $74.33 billion on September 3. Gross minting, redemptions and transfers between Circle-controlled infrastructure can occur simultaneously, making net circulating supply the more useful measure of actual expansion.
Solana nevertheless represents a significant portion of USDC issuance. On-chain supply data shortly after the transactions placed roughly 8 billion USDC on Solana. That puts the network at around one-tenth of global USDC circulation, while Ethereum continues to hold the largest share.
The burst should also not be confused with Solana’s 2026 weekly minting record. The previously reported $3.25 billion seven-day record occurred in early April, when Circle issued 13 tranches of approximately 250 million USDC.
Solana Remains a Major USDC Settlement Network
Circle supports USDC natively on Solana for applications including trading, payments and financial services. Native issuance allows Solana applications to use Circle-backed USDC directly rather than relying on a bridged representation of the stablecoin.
It is also difficult to determine from mint transactions alone who ultimately requested the liquidity. Claims that the issuance specifically reflects institutional treasury or exchange demand require additional evidence beyond the blockchain transfers themselves. The transactions confirm substantial Circle issuance activity on Solana, but they do not independently identify the customers or applications responsible for that demand.
The September burst therefore provides evidence of substantial operational activity around Solana USDC without establishing an equivalent increase in circulating liquidity. The more meaningful longer-term indicator will be whether Solana’s net USDC supply continues to expand after accounting for pre-mints, redemptions and treasury movements.
