Private Companies - greatest valuation growth October 2026

As of Mon, 02 Nov 2026 00:17:23 UTC, Polymarket traders price OpenAI (90.5%), Stripe (36.9%), Anthropic (0.2%). The market has $1K in volume and closes on Sun, 01 Nov 2026.

Updated:

Current odds

OutcomeChanceYes priceNo price
OpenAI90.5%90.5¢9.5¢
Stripe36.9%36.9¢63.1¢
Anthropic0.2%0.2¢99.8¢
Databricks0.1%0.1¢99.9¢
ByteDance0.1%0.1¢100.0¢

Market details

Resolution rules

This market will resolve to the listed company with the largest percentage increase in private market valuation, as measured by the final NPM Price reported by Nasdaq Private Market, LLC (NPM), from the last trading day prior to the specified month (starting valuation) to last trading day of the specified month (ending valuation). NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day. If NPM has not published relevant data for the specified date by 1:00 PM ET on the calendar date following the specified month, this market may remain open until 11:59 PM ET on the third business day following the specified month. If no further data is released by that time, the market will resolve according to the latest available data. If NPM ceases publishing relevant data prior to the specified date, this market will resolve based on the NPM data published prior to the cessation of coverage, as well as applicable public market capitalization data following an IPO or direct listing. If a company completes an IPO or direct listing before the end of the specified month, this market will resolve according to the company's public market capitalization at the market close of the specified date. Public market capitalization will be determined through appropriate calculation using the final official regular-hours closing prices published for the company's listed equities on its primary exchange for the specified date, multiplied b…

Sources

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