投资美股需要注意哪些基础事项？

Group 1 - The first step to invest in US stocks is to open an account with a legally qualified intermediary, which can be a domestic broker with relevant business licenses or a compliant foreign broker [1] - Investors must complete identity verification and risk tolerance assessments during the account opening process, and intermediaries will review the appropriateness of investors according to regulatory requirements [1] - Legal regulations and compliance are fundamental for investing in US stocks, requiring adherence to current rules from the SEC and FINRA, as well as updates from the 2025 revised legislation regarding cross-border investment information reporting and investor protection [1] Group 2 - Familiarity with US stock trading rules is crucial to avoid operational risks, including the T+0 trading system and restrictions on day trading for accounts with net assets below $25,000 [1] - The trading hours differ between summer and winter time, and there are various levels of circuit breakers that trigger trading halts during significant market fluctuations [1] - Tax costs and exchange rate risks must be considered, as non-US residents are subject to withholding tax on dividends, and fluctuations in the RMB-USD exchange rate can directly impact actual returns [2] Group 3 - Information acquisition and risk awareness are equally important, as the information disclosure standards in the US market differ from those in the domestic market [2] - Investors should obtain company announcements and financial reports through legitimate channels to ensure accuracy and timeliness [2] - The US market also presents risks such as market volatility and industry cycles, necessitating that investors make decisions based on their risk tolerance [2]