The Prediction Markets

What will Anthropic's IPO valuation be?

Closes
Jan 1, 2028, in 15 months
Traded
$3.5M
Venues
Polymarket, Kalshi
Prices updated
just now
Share

What the markets expect

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.

Odds by venue

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.

  • Polymarket
  • Kalshi
Before Apr 1, 2027
93%
Kalshi 93%polled, 44s agoBest Yes 93¢ on Kalshi, $100 pays $108 (1.08x)
Kalshi
Contract
Before Apr 1, 2027
Last price
93%
As of
Polled just now
Buy Yes
93¢
Sell Yes
91¢
$100 on Yes pays
$108 (1.08x)
Volume
$31K
Trade this on Kalshi
Before Mar 1, 2027
92%
Kalshi 92%polled, 44s agoBest Yes 92¢ on Kalshi, $100 pays $109 (1.09x)
Kalshi
Contract
Before Mar 1, 2027
Last price
92%
As of
Polled just now
Buy Yes
92¢
Sell Yes
91¢
$100 on Yes pays
$109 (1.09x)
Volume
$23K
Trade this on Kalshi
Before Feb 1, 2027
88%
Kalshi 88%polled, 44s agoBest Yes 88¢ on Kalshi, $100 pays $114 (1.14x)
Kalshi
Contract
Before Feb 1, 2027
Last price
88%
As of
Polled just now
Buy Yes
88¢
Sell Yes
87¢
$100 on Yes pays
$114 (1.14x)
Volume
$38K
Trade this on Kalshi
Before Jan 1, 2027
85%
Kalshi 85%polled, 44s agoBest Yes 86¢ on Kalshi, $100 pays $116 (1.16x)
Kalshi
Contract
Before Jan 1, 2027
Last price
85%
As of
Polled just now
Buy Yes
86¢
Sell Yes
85¢
$100 on Yes pays
$116 (1.16x)
Volume
$322K
Trade this on Kalshi
Before Dec 1, 2026
84%
Kalshi 84%polled, 44s agoBest Yes 86¢ on Kalshi, $100 pays $116 (1.16x)
Kalshi
Contract
Before Dec 1, 2026
Last price
84%
As of
Polled just now
Buy Yes
86¢
Sell Yes
83¢
$100 on Yes pays
$116 (1.16x)
Volume
$278K
Trade this on Kalshi
1.50–$1.75T
51.1%
Polymarket 51.1%polled, 1 min agoBest Yes 53.3¢ on Polymarket, $100 pays $188 (1.88x)
Polymarket
Contract
1.50–$1.75T
Last price
51.1%
As of
Polled 1 min ago
Buy Yes
53.3¢
Sell Yes
49¢
$100 on Yes pays
$188 (1.88x)
Volume
$33K
Trade this on Polymarket
1.75–$2.00T
30.5%
Polymarket 30.5%polled, 1 min agoBest Yes 33¢ on Polymarket, $100 pays $303 (3.03x)
Polymarket
Contract
1.75–$2.00T
Last price
30.5%
As of
Polled 1 min ago
Buy Yes
33¢
Sell Yes
28¢
$100 on Yes pays
$303 (3.03x)
Volume
$83K
Trade this on Polymarket
Before Nov 16, 2026
25%
Kalshi 25%polled, 44s agoBest Yes 25¢ on Kalshi, $100 pays $400 (4.00x)
Kalshi
Contract
Before Nov 16, 2026
Last price
25%
As of
Polled just now
Buy Yes
25¢
Sell Yes
23¢
$100 on Yes pays
$400 (4.00x)
Volume
$11K
Trade this on Kalshi
1.25–$1.50T
9.2%
Polymarket 9.2%polled, 1 min agoBest Yes 9.9¢ on Polymarket, $100 pays $1,010 (10.1x)
Polymarket
Contract
1.25–$1.50T
Last price
9.2%
As of
Polled 1 min ago
Buy Yes
9.9¢
Sell Yes
8.5¢
$100 on Yes pays
$1,010 (10.1x)
Volume
$9K
Trade this on Polymarket
2.00–$2.25T
6.9%
Polymarket 6.9%polled, 1 min agoBest Yes 8.3¢ on Polymarket, $100 pays $1,205 (12.0x)
Polymarket
Contract
2.00–$2.25T
Last price
6.9%
As of
Polled 1 min ago
Buy Yes
8.3¢
Sell Yes
5.5¢
$100 on Yes pays
$1,205 (12.0x)
Volume
$43K
Trade this on Polymarket
Show 6 more outcomes
Before Nov 1, 2026
3%
Kalshi 3%polled, 44s agoBest Yes 3¢ on Kalshi, $100 pays $3,333 (33.3x)
Kalshi
Contract
Before Nov 1, 2026
Last price
3%
As of
Polled just now
Buy Yes
3¢
Sell Yes
1¢
$100 on Yes pays
$3,333 (33.3x)
Volume
$915K
Trade this on Kalshi
No IPO by December 31, 2027
2.4%
Polymarket 2.4%polled, 1 min agoBest Yes 3.3¢ on Polymarket, $100 pays $3,030 (30.3x)
Polymarket
Contract
No IPO by December 31, 2027
Last price
2.4%
As of
Polled 1 min ago
Buy Yes
3.3¢
Sell Yes
1.5¢
$100 on Yes pays
$3,030 (30.3x)
Volume
$6K
Trade this on Polymarket
2.25–$2.50T
2.4%
Polymarket 2.4%polled, 1 min agoBest Yes 3.5¢ on Polymarket, $100 pays $2,857 (28.6x)
Polymarket
Contract
2.25–$2.50T
Last price
2.4%
As of
Polled 1 min ago
Buy Yes
3.5¢
Sell Yes
1.2¢
$100 on Yes pays
$2,857 (28.6x)
Volume
$13K
Trade this on Polymarket
1.25T
1.4%
Polymarket 1.4%polled, 1 min agoBest Yes 2.1¢ on Polymarket, $100 pays $4,762 (47.6x)
Polymarket
Contract
1.25T
Last price
1.4%
As of
Polled 1 min ago
Buy Yes
2.1¢
Sell Yes
0.6¢
$100 on Yes pays
$4,762 (47.6x)
Volume
$6K
Trade this on Polymarket
Before Oct 24, 2026
1%
Kalshi 1%polled, 44s agoBest Yes 1¢ on Kalshi, $100 pays $10,000 (100x)
Kalshi
Contract
Before Oct 24, 2026
Last price
1%
As of
Polled just now
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$171K
Trade this on Kalshi
2.50T+
0.7%
Polymarket 0.7%polled, 1 min agoBest Yes 1¢ on Polymarket, $100 pays $10,000 (100x)
Polymarket
Contract
2.50T+
Last price
0.7%
As of
Polled 1 min ago
Buy Yes
1¢
Sell Yes
0.4¢
$100 on Yes pays
$10,000 (100x)
Volume
$7K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: the New York Times, ABC, Bloomberg

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Before Apr 1, 2027
  • Before Mar 1, 2027
  • Before Feb 1, 2027

Order books

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

Polymarket doesn’t list Before Apr 1, 2027 for this event.

Top of book

Connecting
Best bid
—
Spread
—
Best ask
—

Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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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.

About this market

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.

Questions

What does the consensus price mean?

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%.

How is the payout worked out?

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.

Why do the venues show different prices?

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.

Is a price gap an arbitrage?

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.

How fresh are these prices?

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.

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