No, your open positions do not automatically close when you log out of the MetaTrader 5 (MT5) platform. Here are some key points to consider:
1. Positions Remain Open: Your open positions will remain active until you manually close them or until they are closed by reaching a stop loss, take profit, or margin stop out level.
2. Pending Orders: Any pending orders you have set (such as limit or stop orders) will also remain active and will be executed if the market reaches the specified entry price.
3. Trailing Stops: If you have set trailing stops, they will only function while your MT5 platform is open and you are logged in. If you log out or close the platform, the trailing stop will stop adjusting, and the last set stop loss level will remain in effect.
4. Expert Advisors (EAs): Automated trading systems or Expert Advisors will also stop functioning when you log out of the platform. They require the platform to be running and logged in to execute trades and manage positions.
5. Server-Side Orders: Orders such as stop loss and take profit are stored on the Windsor Brokers server, so they will be executed even if you are logged out. However, features that rely on the client terminal, like trailing stops and EAs, will not function without the platform being open.