TOTAL VOLUME:
$54.4b
24H VOL:
$234,875,025
OPEN INTEREST:
$1,205,330,693
501,301
Markets across
13,585
events
MATCHED EVENTS:
1,825
PLATFORM COVERAGE:
4
Polymarket:
51%
VS.
Kalshi:
49%
2nd largest company end of May?
Total volume:
$2,373,131
Volume 24h:
$134,909
32%
Liquidity:
$20,825,581
2%
Open interest:
$172,826
0%
Outcome
Chance %
Price
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
Trade
Description
This event group determines which company will hold the second-largest market capitalization globally as of May 31, 2026 market close. Both Polymarket and Predict platforms offer identical binary outcome markets on the same set of companies (NVIDIA, Apple, Microsoft, Tesla, Alphabet, Amazon, Saudi Aramco, Broadcom, and others) with a catch-all 'any other company' option on Polymarket.
PredictionHero - Resolution Divergence Alerts (RDA)
Unified Resolution Criteria (Consistent across platforms)
Both platforms apply identical resolution criteria: identify the single company with the second-highest market capitalization globally on May 31, 2026 at market close, determined by consensus of credible reporting.
Primary resolution logic:
Consensus of credible reporting on global market capitalizations as of May 31, 2026 market closeCore resolution logic:
- Rank all publicly traded companies worldwide by market capitalization as of May 31, 2026 market close
- Identify the company in second position by market cap
- Exactly one binary outcome (the identified company) resolves YES; all others resolve NO
- If the second-largest company is not explicitly listed on Polymarket, the 'any other company' option resolves YES
- Resolution uses consensus of credible financial reporting sources (e.g., Bloomberg, Reuters, Yahoo Finance, official exchange data)
Edge cases & Clarifications:
- Tie for second place: If two companies have identical market caps at market close, credible reporting consensus determines which is ranked second; resolution follows that consensus determination
- Market disruption or halt: Resolution uses the official market close price on May 31, 2026; if markets close early or experience disruption, the last official closing price is used
- Company delisting or merger: If a listed company is delisted, acquired, or merged before May 31, 2026, its market cap is determined as of the last trading day; if it no longer exists on May 31, 2026, it cannot be second-largest and resolves NO
- Polymarket catch-all: The 'any other company' option on Polymarket resolves YES only if the actual second-largest company is not among the 29 explicitly named companies; otherwise it resolves NO
Timing:
Resolution occurs after May 31, 2026 market close, once credible reporting consensus on global market capitalizations is available (typically within 1-2 business days)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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PredictionHero © 2026 · v0.13.0PredictionHero provides aggregated market data and informational signals only. Nothing on this site constitutes financial, legal, or investment advice. Markets are volatile and speculative. Past performance does not guarantee future results. Always do your own research and consult qualified professionals before making decisions involving risk.