Kalshi’s implied odds for an Anthropic IPO announcement fell across both reported deadlines during the week CNBC described on November 6, 2026. The chance of an announcement before December dropped from above 85% to 57%; the chance before January 2027 fell from 90% to 68%, according to CNBC’s report.
Two announcement deadlines repriced lower
| Announcement deadline | Earlier reported odds | Later reported odds | Change in percentage points |
| Before December 2026 | Above 85% | 57% | More than 28 points lower |
| Before January 2027 | 90% | 68% | 22 points lower |
The changes are percentage-point differences between the reported values. The figures describe Kalshi contract prices during the week before CNBC’s November 6 report, not a live quote. CNBC disclosed a commercial relationship with Kalshi involving customer acquisition and a minority investment.
The contracts tracked an official announcement
The Kalshi contracts asked when Anthropic would officially announce an IPO. They tracked market expectations for that announcement, with news outlets verifying the outcome, CNBC reported.
Read each probability by its deadline: the contracts priced separate windows for an official announcement.
NeoTeo previously covered Anthropic’s possible IPO calendar. The Kalshi contracts added a separate market signal about the timing of an announcement.
The market backdrop included a sharp stock sell-off
CNBC situated the repricing amid a sell-off in AI stocks and investor concerns that Democratic victories in Congress and several governorships could slow data-center construction. The report described that context; it did not establish one cause for the change in contract prices.
In the Thursday, November 5 session, the S&P 500 fell 4.4%, the Dow Jones Industrial Average dropped more than 1,800 points, or 3.4%, and the Nasdaq Composite closed more than 10% below its recent high, CNBC reported.
Investors discussed lower valuation figures
Separate reports described investor views on Anthropic’s potential valuation. Bloomberg reported that prospective IPO buyers discussed a range of $1.2 trillion to $1.3 trillion, with some considering $1.1 trillion. The Wall Street Journal reported that three investors intending to participate thought an anticipated $1.5 trillion valuation might need to fall; one suggested it could be closer to $1 trillion.
