USDC (a stablecoin issued by Circle) occupies an important position in the market as a dollar-pegged cryptocurrency, known for its high transparency and compliance. Its market capitalization is stable, and its circulation volume is second only to USDT, widely used in DeFi, payments, and cross-border transactions. USDC is jointly supported by Circle and Coinbase, with reserves regularly audited, and a high proportion of dollar deposits and short-term government bonds enhances investor trust. In discussions on platform X, users generally believe that USDC is superior in security compared to some competitors, especially performing robustly under regulatory pressure. However, its centralized nature raises controversies, with some decentralization supporters concerned about potential freezing risks. Recently, USDC has rapidly expanded its ecosystem on chains like Ethereum and Solana, with high transaction efficiency and low fees, making it suitable for high-frequency use cases. Market analysis indicates that the application of USDC in DeFi lending and liquidity mining continues to grow, but vigilance is needed regarding macroeconomic fluctuations affecting stablecoin demand. Overall, USDC is a reliable medium of exchange, suitable for risk-averse investors, but long-term holding requires attention to regulatory policy changes and competition from decentralized stablecoins. It is recommended to assess its role in the investment portfolio based on specific use cases.