Resolution criteria on PolyGram: The 2026 Met Gala is scheduled for May 4, 2026. This year's theme is "Costume Art". This market will resolve to "Yes" if the listed individual attends the 2026 Met Gala. Otherwise, this market will resolve to "No". If the event is canceled or postponed beyond May 31, 2026, 11:59 PM ET, this market will resolve to "No". Attending the event is defined as being in physical attendance during any part of the event. The resolution source will be a consensus of credible reporting.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Jay-Z | 100% YES | 0% NO |
| Adele | 0% YES | 100% NO |
| Chappell Roan | 0% YES | 100% NO |
| Rihanna | 100% YES | 0% NO |
| Meryl Streep | 0% YES | 100% NO |
| Olivia Rodrigo | 0% YES | 100% NO |
| Billie Eilish | 0% YES | 100% NO |
| Frank Ocean | 0% YES | 100% NO |
The Metropolitan Museum of Art's annual gala is scheduled for 4 May 2026, with this year's theme centred on costume art. The event traditionally draws prominent figures from entertainment, fashion, and culture, though attendance remains subject to individual circumstances, scheduling conflicts, and the individual's relationship with the institution. The market resolves affirmatively if the specified attendee is in physical presence at any point during the event; cancellation or postponement beyond 31 May 2026 triggers a "No" resolution.
Met Gala attendance patterns show consistent participation from A-list celebrities, with historical data suggesting that those invited typically attend unless facing significant personal or professional obstacles. The current 100% implied probability on Polymarket's order book reflects the baseline expectation that established invitees follow through on attendance. However, this assessment depends on the individual's standing with the museum, their schedule across spring 2026, and any health or personal circumstances that might emerge between now and May.
Traders should monitor several catalysts: official guest lists released by Vogue or the Met in the weeks preceding the event, any public statements from the attendee regarding their plans, and broader industry developments that might affect their availability. Recent reporting on Met Gala logistics typically emerges in late April, providing clearer confirmation of final attendee rosters. The tight settlement window—ending at midnight on the event date—means that last-minute cancellations or no-shows would be the primary resolution drivers at this stage.
The Athens Metro is a rapid transit system serving the Athens urban area in Greece. Line 1 opened as a single-track conventional steam railway in 1869 and was electrified in 1904. Beginning in 1991, Elliniko Metro S.A. constructed and extended Lines 2 and 3. It has significantly changed Athens by providing a much-needed solution to the city's traffic and air
The Athens metropolitan area spans 2,928.717 km2 (1,131 sq mi) within the Attica region and consists of 58 municipalities plus parts of East Attica and West Attica, having reached a population of 5,173,179 according to the 2021 census. The municipalities of Athens and Piraeus both serve as the two metropolitan centres of the Athens metropolitan area.
Electric Multiple Units (EMU) are powered on the metro network of Athens, with five or six coaches. EMU-5s are of a former type and are limited to Line 1. On Lines 2 and 3, routes are only operated with EMU-6s. The trainsets were put into operation by STASY in 2011, with its establishment.
Line 1 is the oldest of the three lines of the Athens Metro, running from Kifissia to Piraeus. The Athens and Piraeus Railway Company first opened the line, between Piraeus and Thiseio, on 27 February 1869. On 4 February 1885 Lavrion Square–Strofyli railway line opened between Attiki Square and Kifissia. These railway lines gradually merged and converted to
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.
The mechanics for trading "Who will attend the Met Gala?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$20K in lifetime turnover and $0 of resting liquidity puts this market in the around the median by volume for celebrities contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 4 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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