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Lead Bank in Anthropic's IPO?
Financials
polymarket
kalshi

Lead Bank in Anthropic's IPO?

Total volume:
$64,407
Volume 24h:
$456
35%
Liquidity:
$15,045
27%
Open interest:
$8,690
0%

Mizuho

 - Kalshi

Mizuho - Kalshi

64%

+1%

1W

News

Positive

Negative

Neutral

Hover marker for details

2

Aug 20

Aug 21

Aug 22

Aug 23

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Aug 27

Vol.

$1.5

·

Resolves Jan 1, 2028

Will Mizuho take Anthropic public before Jan 1, 2028?

64%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 64¢ buys you 156 shares | Odds: 64% Total Payout: $156 | Net Profit: $56 Multiplier: 1.56x | ROI: 56% | APY: 39% 492 days to resolution
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Outcome
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Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
MUI X License key version mismatch
Total markets: 24

Description

This event group tracks which financial institution will serve as the lead underwriter for Anthropic's initial public offering. Markets span major global investment banks (JPMorgan Chase, Goldman Sachs, Morgan Stanley, etc.), regional and boutique firms (Stifel, Piper Sandler, Evercore), and a catch-all 'Other' category. Resolution depends on official IPO prospectus disclosures or credible reporting identifying the primary lead underwriter before the deadline.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Polymarket and Kalshi cover different bank universes with different deadlines (Dec 31, 2027 vs Jan 1, 2028) and different fallback logic. Polymarket includes major global banks and an 'Other' category; Kalshi focuses on boutique/mid-market advisory firms with no catch-all. This creates scope misalignment and potential for conflicting resolutions if a Kalshi-listed firm is the lead underwriter.Hero tip: Treat Polymarket as the comprehensive market and Kalshi as a specialized subset play. If you believe a boutique firm (Evercore, Lazard, Centerview, etc.) will lead, Kalshi offers direct exposure; if you believe a major bank (JPMorgan, Goldman Sachs, Morgan Stanley) will lead, Polymarket is your only option. Watch for Anthropic's official IPO announcement and prospectus filing to confirm the lead underwriter's identity and ranking. The 1-day deadline difference (Dec 31 vs Jan 1) is negligible but note that Polymarket has explicit 'Other' resolution if no IPO occurs; Kalshi does not.

Critical divergence points:

  • Polymarket: Comprehensive coverage of 20 named entities (Wells Fargo, BofA, JPMorgan, Goldman Sachs, Morgan Stanley, Citigroup, Barclays, Deutsche Bank, UBS, plus 9 unnamed banks A-I) plus 'Other' fallback. Deadline Dec 31, 2027, 11:59 PM ET. Resolves to 'Other' if no IPO or no designated lead. Tie-breaking via prospectus order. Primary source: official Anthropic disclosures or credible reporting consensus. Key Quote: 'If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter.'
  • Kalshi: Narrow focus on 15 boutique/advisory firms (Stifel, Qatalyst, Evercore, Lazard, Raymond James, Rothschild, Centerview, Allen & Company, Perella Weinberg, PJT, Greenhill, Piper Sandler, William Blair, Mizuho, Moelis). Binary YES/NO per firm. Deadline Jan 1, 2028. No 'Other' category or fallback logic. Key Quote: 'If [firm] serves as a lead underwriter for Anthropic's initial public offering in the United States before Jan 1, 2028, then the market resolves to Yes.'
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.
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Polymarket

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.

Kalshi

A bank qualifies as a lead underwriter if it serves as lead underwriter, book-running manager, or global coordinator as documented in SEC filings (Form S-1 or final prospectus) or official announcements. Joint book-running managers satisfy the criterion. Direct listings, SPAC mergers, secondary offerings, and private placements do not qualify as IPOs for this market. If a bank merges with another institution, the surviving entity under any name qualifies. For dual listings, only the U.S. portion is considered. Notably, even if Anthropic's IPO is later shelved or withdrawn, the market resolves Yes based on the announcement of the underwriting relationship, provided the announcement occurred before January 1, 2028.

Frequently asked questions

The dashboard aggregates prediction market data across Polymarket and Kalshi to track which financial institution will serve as lead underwriter for Anthropic's initial public offering. Polymarket currently shows 62.0% odds for Morgan Stanley or its underwriting affiliates, while Kalshi tracks alternative outcomes. The consensus view reflects real-time probability shifts as new information about Anthropic's IPO timeline and banking relationships emerges. Total tracked volume across platforms stands at $61,985, with $4,192 in 24-hour activity, providing liquidity and market depth for this high-stakes corporate finance event.

Prediction market odds reflect crowd-sourced expectations from thousands of traders with financial incentives to forecast accurately, often diverging from traditional analyst consensus. Markets price in real-time reactions to earnings calls, regulatory filings, and banking industry news that analysts may lag in incorporating. For Anthropic's lead underwriter selection, prediction markets capture nuanced views on which bank has the strongest relationship with the company's leadership and board, factors that formal analyst reports rarely quantify. This event's cross-platform odds provide a dynamic alternative to static equity research, particularly valuable given Anthropic's private status and limited public disclosure.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Platform differences stem from distinct user bases, liquidity pools, and outcome specifications. Polymarket focuses on Morgan Stanley's role as lead or affiliate underwriter, while Kalshi tracks Stifel Financial as the lead bank, creating non-overlapping market structures. Regulatory constraints, geographic user restrictions, and fee structures also influence where traders concentrate capital. Additionally, each platform's order-book depth and historical volume affect price discovery; lower-liquidity markets may exhibit wider spreads and slower convergence to consensus. Arbitrage opportunities between platforms remain limited by withdrawal friction and platform-specific settlement rules, allowing temporary price divergence to persist.

The market resolves on Jan 1, 2028, establishing a final deadline for Anthropic's IPO completion and lead underwriter announcement. Resolution hinges on official SEC filings, press releases, and public statements confirming which bank holds the lead underwriter role in Anthropic's offering. If Anthropic does not go public by the deadline, or if the lead bank designation remains ambiguous, resolution criteria will reference the most authoritative public disclosure available. Traders should monitor Anthropic's investor relations channels, SEC EDGAR filings, and major financial news outlets for definitive announcements that trigger market settlement.

Major catalysts include Anthropic's public statements on IPO timing, leadership changes at the company or potential underwriting banks, and shifts in AI regulation that affect valuation or banking appetite. Earnings announcements or funding rounds by Anthropic signal financial health and readiness for public markets. Banking industry consolidation, leadership changes at Morgan Stanley or other major underwriters, and competitive moves by rival AI firms also influence odds. Macro events such as interest-rate shifts, equity market volatility, or tech sector sentiment reshape underwriter risk appetite. Finally, direct reporting on Anthropic's banking relationships or board-level discussions about IPO strategy can trigger sharp repricing across both Polymarket and Kalshi.