The 2026 IPO landscape is shaping up to be a historic one, with giants like OpenAI and SpaceX looming on the horizon. But in a market fueled by hype, how do you separate the titans from the traps? In this guide, our resident investment expert breaks down the 5 critical "Green Flags" every retail investor needs to see before the opening bell rings. From decoding the S-1 filing to evaluating competitive moats, learn how to audit your next big investment like a Wall Street pro.