[Arc Mainnet Launches: 372 Million USDC on Chain Within 2 Hours, Prior USDC Premium Reached 80%-100%] According to monitoring by crypto KOL Ai Yi, two hours after the Arc mainnet launch, the total on-chain USDC reached 371,674,275 tokens, approximately 0.5% of USDC's circulating supply, with around 176,000 total addresses. Before the mainnet launch, some users transferred funds into Arc in advance to purchase Meme tokens at an 80%-100% USDC premium. Based on this cost, the target market value would need to double for them to break even.