Polymarket's $39B Boom Lets Retail Investors Bet on Private Firms Like OpenAI Before IPOs
Polymarket has seen rapid growth in 2026, with nearly $39 billion traded in the US so far this year. The platform now offers a new way for retail investors to bet on the future valuations of private companies before they go public. Its latest move involves a partnership with Nasdaq Private Market to provide official valuation data for these contracts. The platform’s expansion comes as it targets a gap in the market: allowing everyday investors to speculate on private firms like OpenAI and SpaceX long before an IPO. Unlike traditional equity, Polymarket’s contracts focus on event-based outcomes, such as whether a company will hit a specific valuation milestone. Early markets include tech and crypto firms like Anthropic, Stripe, Kraken, Anduril, and Databricks.
Polymarket’s advantage lies in its data infrastructure, which competitors like Kalshi currently lack. Nasdaq Private Market will now serve as the exclusive source for resolving these contracts, making its valuation data publicly available on the platform for free. This partnership adds credibility to the process, as investors rely on verified figures rather than estimates. The platform’s growth has also drawn regulatory attention. The Commodity Futures Trading Commission (CFTC) recently sued Minnesota after the state introduced the nation’s first explicit ban on prediction markets. The CFTC argues that federal law, not state restrictions, should govern these trading platforms. Meanwhile, Polymarket continues to break records, with new market launches hitting consecutive monthly highs over the past year.
Polymarket’s surge in trading volume reflects strong demand for alternative investment opportunities tied to private companies. The Nasdaq partnership ensures transparency, while the CFTC’s legal challenge highlights the evolving regulatory landscape. For now, the platform remains a key player in expanding access to pre-IPO speculation.
