USDC supply on the Arc blockchain surpassed $1 billion about six weeks after the launch of its mainnet on September 16, 2026. It grew 109.4% over the previous 30 days, even as the global stablecoin supply contracted in late October. By early November, Arc held approximately $1.098 billion in stablecoins, including $1.088 billion in USDC, giving USDC a 99.18% share of the total. However, the four largest addresses held about 73% of USDC, raising questions about how widely the funds were distributed. Future growth will depend on whether the adoption pace continues, address concentration declines and other stablecoins gain a meaningful presence on the network.
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