Market snapshot: Oct 15, 2026, 4:13 PM UTC. Prices may have changed since this snapshot.

GroupKALSHIPOLYMARKETCross-Platform

Event GroupKALSHIPOLYMARKETCross-Platform2 EventsFinance

Lead Bank in Anthropic's IPO?

Name: Lead Bank in Anthropic's IPO?
End: 2028-01-01T04:59:00.000Z

Reported volume

PM $89.2K · K 41.1K contracts

Events

Markets

Trade on Polymarket Trade on Kalshi

Lead Bank in Anthropic's IPO?

Vol

PM $89.2K · K 41.1K contracts

Events

Markets

Polymarket Kalshi

Provider overview

polymarket

$89.2K

Reported lifetime volume

kalshi

41.1K contracts

Reported lifetime volume

Reviewed equivalent pairs

No eligible price comparison

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10 markets tracked

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Saved prices are comparisons, not executable quotes. A price difference does not establish arbitrage. Check both contracts, live order prices, fees and available size.

Will Barclays or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

No data available

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Market	Polymarket	Kalshi	Diff

Single-Platform Markets(5)

Rules & Resolution

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Saved matching review

Related contracts: 5 pairs

A saved event match does not establish identical settlement. Pair reviews appear with each price comparison.

Review notes

Saved notes may describe earlier contract terms. Use the pair status above and current provider rules.

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $89.2K · K 41.1K contracts

Reported volume · provider units

Saved contracts

Reviewed equivalent pairs

Source snapshot: Oct 15, 2026, 4:13 PM UTC

About This Event

This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic. If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.” If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released. The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

AI-generated analysis based on market data. Not financial advice.

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Event: Lead Bank in Anthropic's IPO?
Source snapshot: Oct 15, 2026, 4:13 PM UTC
Reported event volume (provider units): PM $89.2K · K 41.1K contracts
Coverage: 15 of 15 saved contracts included.
Prices are saved observations, not executable quotes. Listed close dates do not promise settlement or payout time.

Contract: Will Bank of America serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-BOAX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 5.4K contracts
Outcome Yes: 1.0%; 24h change unavailable
Outcome No: 99.0%; 24h change unavailable
Saved rules: If Bank of America serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will Bank of America or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412857; status: active
Source: https://polymarket.com/event/will-bank-of-america-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $6.1K
Outcome Yes: 0.1%; 24h change unavailable
Outcome No: 99.9%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will Citigroup serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-CITIX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 2.3K contracts
Outcome Yes: 2.0%; 24h change unavailable
Outcome No: 98.0%; 24h change unavailable
Saved rules: If Citigroup serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will Citigroup or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412858; status: active
Source: https://polymarket.com/event/will-citigroup-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $5.7K
Outcome Yes: 0.6%; 24h change unavailable
Outcome No: 99.4%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-GSX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 15.1K contracts
Outcome Yes: 16.0%; 24h change unavailable
Outcome No: 84.0%; 24h change unavailable
Saved rules: If Goldman Sachs serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412855; status: active
Source: https://polymarket.com/event/will-goldman-sachs-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $24.3K
Outcome Yes: 16.4%; 24h change unavailable
Outcome No: 83.6%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will JPMorgan Chase serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-JPMX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 831.79 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If JPMorgan Chase serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will JPMorgan Chase or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412856; status: active
Source: https://polymarket.com/event/will-jpmorgan-chase-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $12.2K
Outcome Yes: 0.3%; 24h change unavailable
Outcome No: 99.7%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-MSX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 16.5K contracts
Outcome Yes: 81.5%; 24h change unavailable
Outcome No: 18.5%; 24h change unavailable
Saved rules: If Morgan Stanley serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will Morgan Stanley or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412854; status: active
Source: https://polymarket.com/event/will-morgan-stanley-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $23.1K
Outcome Yes: 81.5%; 24h change unavailable
Outcome No: 18.5%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will No Listed Underwriter serve as lead-left underwriter on Anthropic's IPO?
Provider: kalshi; ID: kalshi-KXANTHROPICLEADLEFT-28JAN01B-NLOX; status: active
Source: https://kalshi.com/markets/kxanthropicleadleft-28jan01b
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 8, 2028, 3:00 PM UTC
Reported volume: 948.65 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If No Listed Underwriter serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. Secondary rules: If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost (for example, two names sharing equal top billing), then each such underwriter's outcome resolves to $1/(the number of tied underwriters), rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. Early close condition: This market will close and expire early if the IPO underwriting is announced.

Contract: Will Barclays or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412859; status: active
Source: https://polymarket.com/event/will-barclays-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $4.4K
Outcome Yes: 0.6%; 24h change unavailable
Outcome No: 99.4%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will UBS or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412860; status: active
Source: https://polymarket.com/event/will-ubs-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $4.5K
Outcome Yes: 0.1%; 24h change unavailable
Outcome No: 99.9%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will Deutsche Bank or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412861; status: active
Source: https://polymarket.com/event/will-deutsche-bank-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $5.2K
Outcome Yes: <0.1%; 24h change unavailable
Outcome No: >99.9%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Contract: Will Wells Fargo or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?
Provider: polymarket; ID: polymarket-2412862; status: active
Source: https://polymarket.com/event/will-wells-fargo-or-any-of-its-underwriting-affiliates-serve-as-the-lead-underwriter-in-anthropics-initial-public-offering
Observed: Oct 15, 2026, 4:13 PM UTC
Listed close: Jan 1, 2028, 4:59 AM UTC
Reported volume: $3.7K
Outcome Yes: 0.6%; 24h change unavailable
Outcome No: 99.4%; 24h change unavailable
Saved rules: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.

If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”

If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter. If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.

The primary resolution source for this market will be official disclosures from Anthropic. A consensus of credible reporting may also be used.

Saved cross-platform review:
polymarket-2412858 / kalshi-KXANTHROPICLEADLEFT-28JAN01B-CITIX: Related contracts. The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Citigroup serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Citigroup or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.
Price difference withheld: equivalence is not currently established.
Review date: Oct 14, 2026, 10:19 PM UTC
Review caveat: This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.
Review caveat: Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.
Review caveat: The saved review identifies different resolution rules.
Review caveat: The saved review identifies different resolution sources.
polymarket-2412857 / kalshi-KXANTHROPICLEADLEFT-28JAN01B-BOAX: Related contracts. The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Bank of America serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Bank of America or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.
Price difference withheld: equivalence is not currently established.
Review date: Oct 14, 2026, 10:19 PM UTC
Review caveat: This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.
Review caveat: Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.
Review caveat: The saved review identifies different resolution rules.
Review caveat: The saved review identifies different resolution sources.
polymarket-2412855 / kalshi-KXANTHROPICLEADLEFT-28JAN01B-GSX: Related contracts. The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.
Price difference withheld: equivalence is not currently established.
Review date: Oct 14, 2026, 10:19 PM UTC
Review caveat: This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.
Review caveat: Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.
Review caveat: The saved review identifies different resolution rules.
Review caveat: The saved review identifies different resolution sources.
polymarket-2412856 / kalshi-KXANTHROPICLEADLEFT-28JAN01B-JPMX: Related contracts. The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will JPMorgan Chase serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will JPMorgan Chase or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.
Price difference withheld: equivalence is not currently established.
Review date: Oct 14, 2026, 10:19 PM UTC
Review caveat: This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.
Review caveat: Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.
Review caveat: The saved review identifies different resolution rules.
Review caveat: The saved review identifies different resolution sources.
polymarket-2412854 / kalshi-KXANTHROPICLEADLEFT-28JAN01B-MSX: Related contracts. The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Morgan Stanley or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.
Price difference withheld: equivalence is not currently established.
Review date: Oct 14, 2026, 10:19 PM UTC
Review caveat: This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.
Review caveat: Automated review classifications: 0 equivalent, 5 related, 0 incompatible market pairs. A subset of paired outcomes does not establish equivalence of the whole event. Kalshi event: "Which bank will lead Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-08T15:00:00.000Z. Polymarket event: "Lead Bank in Anthropic's IPO?". Listed deadlines for assessed markets (UTC): 2028-01-01T04:59:00.000Z. Automated review flags: differing rules reported; differing resolution sources reported.
Review caveat: The saved review identifies different resolution rules.
Review caveat: The saved review identifies different resolution sources.

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KALSHIFinancials

Which bank will lead Anthropic's IPO?

Before Jan 1, 2028 If X serves as lead-left underwriter on Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes. If two or more underwriters are presented on the cover of the final prospectus as jointly occupying the lead-left position, such that no single underwriter is uppermost-and-leftmost, for example, two names sharing equal top billing, then each such underwriter's outcome resolves to $1/, the number of tied underwriters, rounded down, for “Yes”, and “No” will be paid $1 minus the Yes value. This market will close and expire early if the IPO underwriting is announced.

Volume$41.10K

Markets6

POLYMARKETFinance

Lead Bank in Anthropic's IPO?

Volume$89.17K

Markets9

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Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?

Related contracts

The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Morgan Stanley or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.

Reviewed: Wed, 14 Oct 2026 22:19:50 GMT

Review notes

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

kalshi

Will Morgan Stanley serve as lead-left underwriter on Anthropic's IPO?

Yes: 81.5¢
No: 18.5¢

polymarket

Will Morgan Stanley or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

Yes: 81.5¢
No: 18.5¢

Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?

Related contracts

The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.

Reviewed: Wed, 14 Oct 2026 22:19:50 GMT

Review notes

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

kalshi

Will Goldman Sachs serve as lead-left underwriter on Anthropic's IPO?

Yes: 16.0¢
No: 84.0¢

polymarket

Will Goldman Sachs or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

Yes: 16.4¢
No: 83.6¢

Will Citigroup serve as lead-left underwriter on Anthropic's IPO?

Related contracts

The automated review classified this pair as related and did not establish contract equivalence. Kalshi: "Will Citigroup serve as lead-left underwriter on Anthropic's IPO?"; listed deadline 2028-01-08T15:00:00.000Z (UTC). Polymarket: "Will Citigroup or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?"; listed deadline 2028-01-01T04:59:00.000Z (UTC). Automated review flags: differing rules reported; differing resolution sources reported.

Reviewed: Wed, 14 Oct 2026 22:19:50 GMT

Review notes

This is an automated contract review, not a guarantee of identical settlement or executable prices. Read both providers' full rules before relying on a comparison.

The saved review identifies different resolution rules.

The saved review identifies different resolution sources.

kalshi

Will Citigroup serve as lead-left underwriter on Anthropic's IPO?

Yes: 2.0¢
No: 98.0¢

polymarket

Will Citigroup or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

Yes: 0.6¢
No: 99.4¢

Will Barclays or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

polymarket

Will Barclays or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

Yes: 0.6¢
No: 99.4¢

Will Wells Fargo or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

polymarket

Will Wells Fargo or any of its underwriting affiliates serve as the lead underwriter in Anthropic's initial public offering?

Yes: 0.6¢
No: 99.4¢

No related news found

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Next Market Deadline

Calculating time remaining…

Jan 01, 2028, 4:59 AM UTC

Market Insights

Price gaps of 2 pp+

Reviewed equivalent pairs

No currently reviewed equivalent pairs with both binary Yes prices are available.

Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.

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Lead Bank in Anthropic's IPO?

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