Will OpenAI have the highest IPO Market Cap 2026?

Venue description

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.

Separate resolution rules

No separate resolution-rules field was supplied. The venue description above may contain resolution conditions; verify their complete current wording at the venue.

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24h source volume

$7,776

Source liquidity

$128,640

Closing time

2026-12-31 00:00:00 UTC

Lifecycle in source

active

The source does not provide a 24-hour change here; no change is inferred.

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• Use Refresh observations after the valid-until time; prices are not refreshed in the background.
• Read the captured venue description below for its stated conditions, then confirm the complete current rules and deadline at the venue. A separate resolution-rules field was not supplied.
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Serving source

HowSure Neon capture

Market identity

polymarket:condition-sha256:de00de34b2bc9acb3d823c1c19c0057fead1c699de71eb531598ae050377c414

Observation digest

sha256:796196a210afb896363e61911f76b01958398804c97de1abf86cc2a56a35d77c

Read at

2026-10-30 22:26:01.975 UTC

The digest identifies captured content; it does not certify factual accuracy or provide a permanently retrievable version.