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Circle Launches Arc Blockchain Mainnet

16 Sept 2026· CLOM Newsroom· CLOM· 1 min readUSDCPROJECT

Circle has officially launched the Arc blockchain mainnet, with the mainnet RPC now active and on-chain activity commencing.

In the first two hours, the USDC supply on Arc surpassed $370 million, representing approximately 0.05% of the total USDC supply. However, liquidity remains low, which may lead to wide spreads or heavy slippage as many applications are still in early launch mode.

Reporting aggregated and summarized by CLOM — research & education, not financial advice.

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