Anthropic listing odds rise as traders weigh November timing

November deadlines draw different prices

The prediction market for an Anthropic IPO by November 20 stands at 57 percent, a gain of 32 points on the week, according to Probable Times. The update was published on Nov 1, 2026, at 4:00 AM ET.

A later November deadline carries a higher price. Traders put the probability of a listing by November 30 at 80 percent, according to the same reporting.

The year-end market is priced at 88 percent. Those prices distinguish between expectations for an IPO within the earlier November window and expectations for a listing before the year closes; they do not establish a confirmed listing date.

SpaceX leads the size contest

In the market for the largest 2026 IPO, Anthropic is priced at 46 percent against SpaceX at 54 percent, according to Probable Times. That contest addresses a different question from the timing markets: which company will have the largest IPO, rather than when Anthropic will list.

What it means for prediction markets

• The deadline matters: The November 20, November 30 and year-end markets carry prices of 57 percent, 80 percent and 88 percent, respectively. They should not be treated as interchangeable forecasts.
• The weekly move is specific: The reported 32-point increase applies to the November 20 market; the supplied reporting gives no comparable weekly change for the later deadlines.
• Timing and size are separate outcomes: Higher odds of an Anthropic listing do not necessarily imply leadership in the largest 2026 IPO market, where SpaceX remains ahead.