Resolution criteria on PolyGram: On May 16, 2026, Long Island Rail Road workers represented by five unions began a strike against the Metropolitan Transportation Authority (MTA), halting LIRR service systemwide. This market will resolve to “Yes” if the Long Island Rail Road strike ends by the listed date, 11:59 PM ET. Otherwise, this market will resolve to “No”. The strike will be considered to have ended if an agreement is reached between the MTA and the relevant striking LIRR unions for the striking LIRR workers to return to work systemwide, or if it is otherwise announced by the MTA or the relevant striking LIRR unions that the strike has ended and the striking LIRR workers are returning to work systemwide.
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
| May 19 | 100% YES | 0% NO |
| May 21 | 100% YES | 0% NO |
| May 23 | 100% YES | 0% NO |
| May 31 | 100% YES | 0% NO |
| May 20 | 100% YES | 0% NO |
| May 22 | 100% YES | 0% NO |
| May 24 | 100% YES | 0% NO |
On 16 May 2026, five unions representing Long Island Rail Road workers initiated a systemwide strike against the Metropolitan Transportation Authority, suspending all LIRR service. The market settles affirmatively if an agreement is reached and workers return to service by 31 May 2026, or if either the MTA or the striking unions formally announce the strike's conclusion by that date. The current order book on Polymarket reflects 100% implied probability of resolution to "Yes", suggesting traders assess a strike conclusion within the fifteen-day window as virtually certain.
Historical precedent provides context for interpreting this probability. The 2005 LIRR strike lasted twelve days before settlement, whilst the 2019 MTA bus strike resolved within five days. More broadly, major US transit strikes have typically concluded within two to three weeks, though longer disputes have occurred—the 2002 West Coast port lockout extended ten days, and certain labour actions have persisted substantially longer when fundamental contract disputes remain unresolved. The current 100% probability implies traders expect either rapid negotiation or a resolution mechanism within the fortnight.
Key catalysts include formal negotiation sessions between MTA leadership and union representatives, with particular attention to wage demands, pension structures, and staffing levels—the primary sticking points in recent LIRR labour disputes. Public statements from union leadership and MTA management will signal movement towards settlement. Service restoration announcements, even partial ones, would constitute resolution under market terms. Any indication of extended deadlock or hardened positions from either party would represent material information for traders currently pricing near certainty.
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 "Will the Long Island Rail Road strike end by 2026?" 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.
$19K in lifetime turnover and $0 of resting liquidity puts this market in the around the median by volume for new york city 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 31 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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