Tech & ScienceCloses · in 47 days$768.9K volumePart of: Largest IPO by market cap in 2026? →

Will OpenAI have the highest IPO Market Cap 2026?

Gotcha risk

Low

0 of 4 factors flagged

Watch for: The rules clearly define market capitalization using outstanding shares multiplied by the first-day closing price from the primary exchange.

Read the full assessment

The rules clearly define market capitalization using outstanding shares multiplied by the first-day closing price from the primary exchange. Detailed mechanisms govern currency conversion using official Federal Reserve H.10 reference rates, tie-breakers via alphabetical order, and handling of abbreviated trading sessions or market interruptions. Because the criteria rely on standard exchange reporting and explicit formulas, there is minimal decider latitude or ambiguity.

Resolver
Low
Timing
Low
Wording
Low
Exceptions
Low

AI-generated analysis · google/gemini-3.7-flash ·

Current price

<1%

chance

↔ ±0 pts · 24h

Yes<1¢
No>99¢
OpenAI · Yes · 1MO 0.6 H 0.7 L 0.1 C 0.1−0.5 (−91.7%)

Why it moved

No big moves in the last 7 days.

Resolution rules

This market will resolve to the company that achieves the highest market capitalization in U.S. dollars based on the official closing price on its first trading day in 2026. This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET. Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day. If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically. Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used. In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used. A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded. In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.

Market explained

This market measures whether OpenAI achieves the highest first-day closing market capitalization among all companies completing an Initial Public Offering in 2026.

How it resolves

The market resolves to Yes if OpenAI completes an IPO between January 1, 2026, and December 31, 2026, and attains the highest closing market capitalization in U.S. dollars on its first trading day, with alphabetical order breaking ties. The market resolves to No if another company achieves a higher first-day closing market capitalization in 2026, or if OpenAI becomes unable to complete an IPO due to events such as an acquisition or merger with an already publicly traded entity. Resolution is decided using data from the primary exchange's official listing page, or another reliable source if unavailable, with currency conversion based on the Federal Reserve Board's H.10 foreign exchange reference rate.

Resolution source

Primary exchange official listing page, with Federal Reserve Board H.10 foreign exchange reference rates for currency conversions.

AI-generated analysis · google/gemini-3.7-flash ·