OptionsHouse allows trading during extended hours, meaning traders can place trades before and after the regular market hours. Regular trading hours for the stock market are typically from 9:30 AM to 4:00 PM Eastern Time. The extended hours trading usually encompasses pre-market sessions, which can occur from 4:00 AM to 9:30 AM Eastern Time, and post-market sessions, which can run from 4:00 PM to 8:00 PM Eastern Time. However, it is important to note that trading during these extended hours can involve different risks and complexities, including lower liquidity and higher volatility. Traders should ensure they understand these conditions before engaging in extended hours trading. For specific details on how to access and place trades during these hours, it may be helpful to refer to the current web page related to trading features or contact information for further guidance.