美股交易规则是怎样的？

Trading Rules of US Stock Market - The regular trading hours for the US stock market are from 9:30 AM to 4:00 PM Eastern Time, Monday to Friday, which differs significantly from the trading hours of A-shares [1] - In the US stock market, there is no requirement to trade in multiples of 100 shares, allowing investors to purchase as little as 1 share, providing greater flexibility in capital allocation [1] - The US stock market generally does not impose daily price limits, allowing for potentially unlimited price fluctuations within a trading day, especially during earnings announcements or significant industry events [1] T+0 Trading System - The T+0 trading system allows investors to buy and sell stocks on the same day, enabling daily capital circulation and offering various trading strategies, particularly for day traders [2] - This system requires investors to have strong market analysis skills and risk tolerance, as frequent trading can lead to increased transaction costs and decision-making errors [2] Order Types - Common order types in the US stock market include market orders, limit orders, and stop-loss orders, each serving different purposes in trading strategies [2] - Market orders execute trades at the best available price, ensuring quick completion but potentially less favorable prices [2] - Limit orders allow investors to set a specific price for buying or selling, helping to control costs or lock in profits, while stop-loss orders automatically sell stocks at a predetermined price to mitigate losses [2]