Circle's Blockchain Arc will launch with organizational access through Fireblocks.

Circle is developing the layer-1 blockchain Arc, which is expected to launch a public testnet in the fall and officially at the end of 2025. Arc will integrate directly with Fireblocks – the platform for custody and tokenization of digital assets serving over 2,400 banks and fintechs, supporting 120 blockchains. This is a significant advantage as Solana took over a year to be accepted by Fireblocks.

Circle rapidly expanded after its IPO on June 5, raising $1.05 billion. The stock price increased by 168% on the first day and peaked at nearly $299 in July, currently trading around $145. In Q2/2025, Circle reported revenue of $658 million, a 53% increase compared to the same period; the circulating USDC increased by 90% to over $65 billion.

The stablecoin market reached a market capitalization of 277 billion USD, of which USDC accounts for about 25%, while Tether holds 60% and earns 4.9 billion USD in Q2 thanks to US Treasury yields, becoming one of the largest holders outside the country.