Arc USDC Surpasses $1 Billion in Supply; Top 4 Addresses Hold 73%

Circle's Arc blockchain surpassed $1 billion in USDC supply on October 27, roughly six weeks after its public mainnet launch on September 16, according to Crypto Briefing. The 30-day supply growth rate was reported at 109.4%, with follow-up readings ranging from $1.03 billion to $1.1 billion depending on the tracker and measurement time. DefiLlama data from November 2 showed total stablecoin balances on Arc at approximately $1.098 billion. Concentration remains a key risk: the top four addresses hold 73% of Arc's USDC supply. The milestone positions Arc as a fast-growing stablecoin settlement layer within Circle's ecosystem, but the heavy supply concentration and rapid growth rate are worth monitoring as the network matures.