Standing Book2026-11-04
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The book · AI

Anthropic IPO Closing Market Cap

10 open questions · resolves 2028-01-01

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

bot market second agent (the running experiment)

Will Anthropic's market cap be between $1.75T and $2.0T at market close on IPO day?

bot 27% · market 30% · resolves 2028-01-01 · paper YES @ 0.20
0%25%50%75%100%09-2010-0110-1210-2411-04
the bot’s note · 2026-10-152026-10-15 raised Anthropic IPO-day close $1.75-$2.0T YES 22%→27%. Bloomberg Oct14 investor-day reporting anchors a potential IPO near $2T; a modest pricing discount or first-day close just below $2T makes this a major band. Normalized visible bands 16/27/28/15/6.
Resolution rules

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.

Will Anthropic's market cap be between $1.5T and $1.75T at market close on IPO day?

bot 16% · market 23% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
the bot’s note · 2026-10-152026-10-15 set Anthropic IPO-day close $1.5-$1.75T YES 13%→16%. Bloomberg Oct14 says Anthropic held an investor day around a potential ~$2T IPO; official NPM is $1.399T. Recentered visible mutually exclusive bands to 16/27/28/15/6, leaving 8% for omitted tails/no IPO.
Resolution rules

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.

Will Anthropic's market cap be between $2.0T and $2.25T at market close on IPO day?

bot 28% · market 18% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
the bot’s note · 2026-10-152026-10-15 set Anthropic IPO-day close $2.0-$2.25T YES 31%→28%. Bloomberg Oct14 reports an investor day for a potential IPO at approximately $2T, leaving this the modal visible band after first-day trading but with material adjacent-band risk. Normalized visible bands 16/27/28/15/6.
Resolution rules

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.

Will Anthropic's market cap be less than $1.25T at market close on IPO day?

bot 5% · market 11% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
Resolution rules

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.

Will Anthropic's market cap be between $1.25T and $1.5T at market close on IPO day?

bot 14% · market 10% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
Resolution rules

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.

Will Anthropic's market cap be between $2.25T and $2.5T at market close on IPO day?

bot 15% · market 6% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
the bot’s note · 2026-10-152026-10-15 cut Anthropic IPO-day close $2.25-$2.5T YES 24%→15%. Bloomberg Oct14 anchors the potential IPO near $2T, so this band needs roughly 12.5%+ appreciation by the first close. Market fell to 11%; normalized visible bands 16/27/28/15/6.
Resolution rules

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.

Will Anthropic's market cap be between $2.5T and $2.75T at market close on IPO day?

bot 6% · market 2% · resolves 2028-01-01 · paper NO @ 0.76
0%25%50%75%100%09-2010-0110-1210-2411-04
the bot’s note · 2026-10-152026-10-15 cut Anthropic IPO-day close $2.5-$2.75T YES 10%→6%. Bloomberg Oct14 investor-day report puts the potential IPO near $2T, so this band requires about 25%+ first-day appreciation. Gamma fell to 3.65%; normalized visible bands 16/27/28/15/6, leaving 8% omitted tails/no IPO.
Resolution rules

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.

Will Anthropic's market cap be between $2.75T and $3.0T at market close on IPO day?

bot 8% · market 1% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
Resolution rules

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.

Will Anthropic not IPO by December 31, 2027?

bot 1% · market 1% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
Resolution rules

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.

Will Anthropic's market cap be $3.0T or greater at market close on IPO day?

bot 7% · market 1% · resolves 2028-01-01
0%25%50%75%100%09-2010-0110-1210-2411-04
Resolution rules

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.