SpaceX made its long-awaited stock market debut on the Nasdaq on Friday, and the rocket company wasted no time making history. According to CNBC, the company immediately became the sixth most-valuable U.S. company, reaching a $2 trillion market cap — a remarkable figure for a business that is a fraction the size by revenue of the tech megacaps that surround it on that list.

The milestone is especially striking given where SpaceX started. CNBC notes the company was once given just a 10% chance of success — a reminder of how improbable its trajectory has been under Elon Musk's leadership, from a scrappy rocket startup to a $2 trillion public company in roughly two decades.

Wall Street's initial read is bullish, and some analysts think Friday was only the beginning. Peter Haynes, TD Securities' head of index and market structure, told CNBC that SpaceX's public debut is "only a small part of the larger SpaceX timeline" — signaling that institutional investors may see the IPO as an entry point into a much longer story, not a peak.

One practical dimension worth watching: as SpaceX joins major indices, index funds will be required to buy shares, creating automatic demand that could support the stock price in the near term.

The IPO matters because it gives everyday investors direct access to a company that has quietly reshaped the global space industry — and it sets a new benchmark for how markets value ambition-driven, capital-intensive ventures that operate at the frontier of technology.