Resolution criteria on PolyGram: This market will resolve to “Yes” if both of the following conditions are met as a result of the 2026 midterm elections: - Democrats hold 235 or more seats in the House - Democrats hold 51 or more seats in the Senate Otherwise, this market will resolve to “No”. This market will remain open until it is confirmed that at least one of the above conditions has not been met, or until all of the above conditions have been met. The full rules for this market can be found here: https://polymarket-upload.s3.us-east-2.amazonaws.com/BlueTsunami.pdf
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
| Blue tsunami in 2026? | 49% YES | 52% NO |
The 2026 United States midterm elections will determine whether Democrats can retain control of both chambers of Congress. This market settles affirmatively only if Democrats secure at least 235 House seats and 51 Senate seats—a notably ambitious threshold given historical midterm dynamics. The current 49% implied probability reflects genuine uncertainty about whether Democrats can buck the typical pattern of the sitting president's party losing ground in midterms.
Historically, the party holding the presidency has lost House seats in every midterm since 1934 except 2002 and 2022. Democrats gained seats in 2022 under Biden, an unusual outcome that complicates baseline expectations. The Senate outcome depends heavily on the 2024 election map, which will determine which seats are contested in 2026. If Democrats enter 2026 with a narrow Senate majority, they face structural disadvantage; if they gain seats in 2024, the threshold becomes more achievable. Comparable "wave" scenarios—such as 2018 when Democrats gained 41 House seats—suggest the conditions for a "blue tsunami" are possible but not probable under normal circumstances.
Key variables include economic conditions heading into 2026, presidential approval ratings, and redistricting effects from the 2020 census now fully embedded in House districts. The Federal Reserve's interest rate trajectory and inflation data will influence voter sentiment materially. Significant political events—major legislative achievements, scandals, or shifts in party leadership—could alter the trajectory substantially. Current order book depth on Polymarket shows the market pricing this as a genuine toss-up, with meaningful liquidity at both sides of the 49% midpoint.
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 "Blue tsunami in 2026?" are the same as any other PolyGram political 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.
$26K in lifetime turnover and $23K of resting liquidity puts this market in the below the median by volume for politics contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
Last 24 hours alone saw $39 in turnover, consistent with the market's lifetime daily-average pace.
The market has been open for 4 months — the price has had time to stabilise as new information arrived.
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.
As of today, traders on Polymarket price this outcome at 49%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
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 30 November 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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