Circle’s Arc: A Layer-1 Blockchain Built for Stablecoin Finance

Circle building its own chain marks a shift from issuing a dollar token to owning the settlement layer it runs on, which reframes stablecoins as infrastructure rather than one app among many. That ambition puts Circle closer to the payments and settlement business of banks and networks, and into potential overlap with the chains where USDC currently circulates. The unanswered questions are the ones that matter: whether Arc launches at all, and whether a single issuer's chain can attract the broader ecosystem liquidity that makes settlement rails useful.