Polymarket Prices OpenAI IPO at 71¢ Polymarket traders priced OpenAI's chance of an initial public offering by Dec. 31, 2026 at 71 cents on the dollar, while comparable IPO base rates suggest an 87% probability. The 16-percentage-point gap between market pricing and base-rate estimates signals a potential mispricing for traders and valuation analysts. OpenAI confidentially filed an S-1 with regulators on May 22. Funding & Businessopenaiipoprediction markets Polymarket Prices OpenAI IPO at 71¢ | 8.6 OpenAI is priced on Polymarket at 71¢ for an IPO by Dec 31, 2026. An S-1 was confidentially filed May 22, and comparable IPO base rates put the probability at 87% , a 16 percentage-point edge versus Polymarket. Scoring Rationale An OpenAI IPO would significantly affect industry funding and valuations; the sizable gap between market pricing and base-rate estimates is noteworthy for traders and valuation observers. Practice interview problems based on real data 1,500+ SQL & Python problems across 15 industry datasets — the exact type of data you work with. Try 250 free problems /problems