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Before Apr 1, 2027 93%
Next is Before Mar 1, 2027 at 92%. The venues list this event, but none of their outcomes are matched yet, so prices are shown separately.
Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.








The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
Polymarket doesn’t list Before Apr 1, 2027 for this event.
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Enter a stake to see where it buys the most after fees, using each venue’s live order book.
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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "What will Anthropic's IPO valuation be?". Before Apr 1, 2027 leads at 93%. Next is Before Mar 1, 2027 at 92%. $3.5M has traded across 16 outcomes on Kalshi and Polymarket. The market is expected to resolve by Jan 1, 2028.
This market will resolve according to the implied equity valuation of Anthropic at its initial public offering (IPO) price. Anthropic refers to Anthropic PBC or the corporate successor or parent holding company whose listing represents Anthropic's business. The IPO price will be the final offering price to the public as stated in the final prospectus filed with the U.S. Securities and Exchange Commission. Trading prices after listing, including the opening trade, intraday prices, or closing price on the first day of trading, will not be considered. Indicated or preliminary price ranges, including any ranges disclosed in earlier filings or amendments, will not be considered. The IPO valuation will be determined in the following order of precedence: (1) the implied fully diluted valuation at the final IPO price, as stated in the final prospectus or in an official Anthropic announcement; (2) if no such figure is stated, the final IPO price per share multiplied by the total number of shares outstanding on a fully diluted basis as disclosed in the final prospectus, where the fully diluted count includes all outstanding shares of every class and all shares underlying outstanding options, restricted stock units, warrants, and convertible instruments, regardless of vesting or exercise status and without applying the treasury stock method; (3) if the fully diluted share count cannot be determined from the final prospectus, the implied fully diluted IPO valuation as reported by a consensus of credible reporting. If the determined valuation falls exactly on a boundary between two ranges, this market will resolve to the higher range. If Anthropic's IPO has not priced by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027". If the IPO prices by the deadline, the market will resolve according to the final prospectus even if it is published after the end date. If Anthropic becomes publicly traded without a priced initial public offering, including through a direct listing or through a merger, acquisition, or absorption by an entity that is already publicly traded, this market will resolve to "No IPO by December 31, 2027". The primary resolution source will be the final prospectus filed with the SEC; however, a consensus of credible reporting may also be used.
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.