Circle launched the Arc mainnet on September 16, 2026, expanding its strategy beyond issuing USDC into blockchain infrastructure for stablecoin payments, foreign exchange, tokenized assets, capital markets and institutional settlement. Circle describes Arc as an Economic OS for internet money: an EVM-compatible Layer 1 with deterministic sub-second finality and USDC-denominated transaction fees. The network launched with more than 100 applications and over 100 institutional and ecosystem participants, while USDC circulation had exceeded $74 billion. Arc connects with Circle products including Circle Payments Network, StableFX, CCTP and Gateway, and is intended to support cross-border payments, real-world asset tokenization and AI-agent transactions. Its commercial significance will depend on recurring settlement activity, institutional adoption, USDC demand and the development of non-reserve revenue. Reserve income represented about 95% of Circle's total revenue in the second quarter of 2026, and lower reserve yields offset part of the benefit from higher average USDC circulation. CRCL investors therefore need to distinguish network activity from earnings growth while monitoring interest rates, expenses, competition and quarterly revenue. The material also includes promotional information about KuCoin 5.0, including claims about unified accounts, expanded market access, tokenized real-world assets, KCUSD yield, an AI assistant and compliance credentials, followed by a risk disclaimer.