The Nasdaq 100 Just Changed the Rules. Here's What Every QQQ Investor Needs to Know. ETFs Nasdaq 100 QQQ IPO Index Investing SpaceX OpenAI Anthropic The short version: Effective May 1, 2026, the Nasdaq 100 introduced a "Fast Entry" rule that lets mega-cap IPOs join the index in as few as 15 trading days — down from what could previously be a full year. If you own QQQ or any Nasdaq 100 ETF, this change affects you directly, whether you realize it or not. If you've been following the markets lately, you've probably heard the buzz around SpaceX, OpenAI, and Anthropic potentially going public. These aren't your average IPOs — we're talking about companies valued at over a trillion dollars. And for the first time, the Nasdaq 100 index just built a fast lane for exactly these kinds of companies to enter the index almost immediately after their IPO. That's a big deal. Let me break it down for you — what changed, why it matt...