Palantir Technologies (NASDAQ:PLTR) now carries a market capitalization of a little more than $300 billion as of July 3, 2026, which has taken many investors on a nice ride, given the company’s the software-with-a-defense-flavor story. Palantir is now arguing for a seat inside the mega-cap conversation, alongside the AI infrastructure names its own CEO likes ... Palantir Just Hit $300 Billion. The Numbers Say That’s Only the Start.