TOTAL VOLUME:
$66b
24H VOL:
$398,877,831
24H TRANSACTIONS:
647,445,881
OPEN INTEREST:
$1,477,629,845
622,934
Markets across
14,083
events
MATCHED EVENTS:
1,257
PLATFORM COVERAGE:
4
Polymarket:
49%
VS.
Kalshi:
51%
Anthropic IPO Closing Market Cap (Middle Brackets)? Odds & Prediction Markets
Anthropic IPO Closing Market Cap (Middle Brackets): 1.8T+
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Intro
This market tracks what Anthropic's closing market capitalization will be on its first day of public trading, measured across multiple valuation brackets. Aggregating data from Polymarket and Limitless, the consensus probability for Anthropic reaching a market cap of 1.8 trillion dollars or greater at market close on IPO day stands at 48.0%, with the 1.8 trillion-plus bracket and the sub-1.8 trillion outcome each at 48.0%. Resolution will be determined by the official listing page on NYSE or NASDAQ, or a reliable third-party financial data provider if the exchange page does not display the market cap figure. Watch for Anthropic's IPO announcement and pricing details, as these will directly inform the final valuation outcome by the December 31, 2027 resolution deadline.
PredictionHero - Resolution Divergence Alerts (RDA)
Unified Resolution Criteria (Consistent across platforms)
Primary resolution logic:
Primary exchange official listing page (e.g., NYSE or NASDAQ); reliable third-party financial data provider if official page does not display market cap figure.Core resolution logic:
- Market cap = shares outstanding × closing share price on Anthropic's first trading day
- Resolution occurs at the official closing price of the first full or abbreviated trading session
- If exact boundary value (e.g., exactly $0.9T), resolve to the higher bracket
- If no IPO by December 31, 2027 11:59 PM ET, all bracket markets resolve to 'No IPO by December 31, 2027'
- Trading interruptions (circuit breaker, half-day) use that session's official close; if unavailable, next trading day with official close is treated as IPO day
Edge cases & Clarifications:
- Exact Boundary Value: If closing market cap falls exactly on a bracket boundary (e.g., $0.9T, $1.2T, $1.5T, $1.8T), the market resolves to the higher bracket per explicit rule.
- Trading Session Interruption: If IPO day's normal session is interrupted (circuit breaker, early close), use the abbreviated session's official closing price. If no official close is published for that session, use the next trading day's official close and treat it as the IPO day for resolution purposes.
- No IPO by Deadline: If Anthropic does not IPO by December 31, 2027 11:59 PM ET, all bracket markets (including <0.6T, 0.6–0.9T, etc.) resolve to 'No IPO by December 31, 2027'.
- Missing Official Market Cap Data: If the primary exchange's official listing page does not display market cap, resolution uses another reliable source (e.g., Bloomberg, Yahoo Finance, SEC filings cross-referenced with closing price).
- Currency and Denomination: Market cap is expressed in USD trillions (T). All bracket thresholds ($0.6T, $0.9T, $1.2T, $1.5T, $1.8T) are denominated in USD.
Timing:
Resolution occurs on or shortly after Anthropic's first official trading day close (or next trading day if session is interrupted and no official close is published). Deadline for IPO occurrence is December 31, 2027 11:59 PM ET.Polymarket
This market will resolve based on Anthropic's market capitalization at the closing price on its first day of trading. If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027". Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day. If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket. 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 the event of an interruption in the course of the normal trading session on Anthropic’s 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.
Limitless
This market will resolve based on Anthropic's market capitalization at the closing price on its first day of trading. If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027". Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day. If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket. 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 the event of an interruption in the course of the normal trading session on Anthropic’s 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.
Frequently asked questions
Prediction market participants on Limitless and Polymarket are pricing Anthropic's IPO valuation based on real-time information, investor sentiment, and comparable company multiples. These odds often diverge from traditional equity research forecasts because markets incorporate forward-looking bets and reflect the collective conviction of active traders. Analyst reports typically rely on historical financials and DCF models, while prediction markets weight recent developments, competitive positioning, and macroeconomic conditions. Comparing the two reveals whether the street is more or less bullish than market participants on Anthropic's opening valuation.
Limitless and Polymarket can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Limitless and Polymarket may price Anthropic's IPO market cap differently due to variations in liquidity, user demographics, and market microstructure. Limitless currently shows 5.7% for its top outcome, while Polymarket reflects 48.5%, a spread of 42.9 percentage points. Differences arise from distinct fee structures, order-book depth, regulatory frameworks, and the timing of large trades. Lower liquidity on one platform can amplify price swings, while geographic and institutional participation patterns also shape how each market weights Anthropic's valuation scenarios.
The market resolves on Dec 31, 2027, marking the deadline for Anthropic's IPO closing valuation to be finalized and verified. Resolution hinges on the official market capitalization reported at the end of the IPO's first trading day, determining which middle-bracket range Anthropic's valuation falls into. Participants should monitor regulatory filings, underwriter announcements, and real-time trading data as the event date approaches to assess the likelihood of each outcome bracket.
Key catalysts include Anthropic's updated financial disclosures, competitive announcements from OpenAI or other AI labs, macroeconomic shifts affecting tech valuations, and broader sentiment toward generative AI startups. Regulatory developments, major product launches, or partnerships could reshape investor appetite for Anthropic's shares. Market-wide corrections or rallies in comparable AI companies will influence opening-day momentum. Additionally, changes in interest rates, venture capital funding trends, and geopolitical events affecting AI development may alter the perceived risk and growth profile underlying Anthropic's IPO valuation.
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