Polymarket is changing how it will settle bets on private companies. For new contracts tied to names like OpenAI, Anthropic, Stripe, and SpaceX, it will use Nasdaq Private Market data to determine the outcome.
That is the important change. Private-company pricing is usually hard to pin down because valuations are not posted on a public exchange and secondary share trades happen in fragmented private channels. Using one named data source gives Polymarket a clear benchmark for questions around valuation, IPO timing, and private share activity.
In plain English: if traders want to bet on what happens next with big private startups, Polymarket is trying to remove some of the ambiguity over who decides the result. That matters in a market built around firms that stay private longer, with roughly 1,600 unicorns globally and more than $5 trillion in combined value.
Nasdaq’s move with Polymarket puts private-company prediction contracts on a tighter data rail, and the next rollout details are the tell.