Polymarket launches prediction markets on OpenAI and SpaceX IPOs and private valuations!

Polymarket has rolled out a new category of prediction markets focused on private companies, letting traders bet on whether high-profile names like OpenAI and SpaceX will go public and at what valuations. The move brings crowd-sourced probability pricing to one of the most closely watched corners of the tech economy — the eventual public-market debut of the AI and space giants.

Prediction markets have increasingly been treated as a real-time signal layer on top of traditional financial analysis. By opening markets on private-company milestones, Polymarket is effectively creating a live odds feed on events that venture capitalists and institutional investors currently price only through opaque secondary transactions.

For crypto-native traders, the expansion deepens Polymarket's utility beyond politics and macro — and positions it as a credible alternative data source for anyone…