ES futures (E-mini S&P 500 futures) are like a weather forecast for the stock market, giving investors a chance to predict how the market might move before it opens. ES futures trade almost 24/7, meaning they’re active even when the regular stock market is closed. If ES futures are rising by +20 points or more, it suggests a positive market open (green day). On the other hand, a drop of -20 points or more indicates a potential market decline (red day). Checking ES futures premarket helps investors understand how overnight news or events are affecting market sentiment, allowing us to plan our day and investments more effectively. Think of it as getting a heads-up on whether the market will be sunny or rainy.