Resolution criteria on PolyGram: This market will resolve to "Yes" if the Japanese government declassifies any files pertaining to extraterrestrial life and/or unexplained aerial phenomena which were not previously publicly available between market creation and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". For the purposes of this market, only information from the national Government of Japan will qualify. Information from individual prefectures or municipalities will not be sufficient to resolve this market. Announcements of declassifications that are not implemented within this market's timeframe will not count.
Election and policy markets historically tighten as polling firms publish their final round and prediction-market traders fade or back the consensus. Current odds favour the NO side at 21%, making this a directional market with 217 days to resolution, giving the order book ample time to absorb new information, backed by $8K of resting liquidity.
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
| Japan declassifies new UFO files in 2026? | 21% YES | 79% NO |
The Japanese government has not systematically declassified files on unidentified aerial phenomena or extraterrestrial matters, distinguishing Japan from the United States, which released Navy pilot encounter reports in 2015 and congressional testimony on UAP incidents in 2023. Japan's Ministry of Defence has historically maintained minimal public documentation on such topics, with no equivalent to America's Freedom of Information Act requests driving transparency. The current 22% implied probability on Polymarket reflects scepticism about whether Japan will break from this pattern within the next two years, though the order book shows meaningful conviction on both sides of the trade.
Comparable declassifications offer limited precedent. South Korea's military released footage of unidentified objects in 2020, whilst the UK released its final batch of UFO files in 2013 after decades of FOIA pressure. Japan's political culture and bureaucratic structure differ substantially; the country has no equivalent legislative mandate for automatic declassification timelines. The Diet (parliament) would need to initiate formal pressure or the government would require internal policy change—neither has materialised to date.
Traders should monitor Diet proceedings for any formal inquiries into UAP documentation, statements from the Defence Minister or Cabinet Office, and whether international pressure from allied nations influences Japanese transparency policy. Recent US congressional activity on UAP has not visibly prompted Japanese government response, though this remains a potential catalyst if momentum builds toward international coordination on the issue.
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.
For this market, the resolution date is 31 December 2026. A UMA proposer can submit the outcome from that moment; the two-hour dispute window closes at , and assuming no counter-claim is staked, winning USDC clears to trader balances by approximately .
If a dispute is filed inside the two-hour window, the outcome escalates to UMA token-holder voting, which extends settlement by roughly 48 hours. This particular market has no public resolution feed listed; disputes here are more likely if the underlying outcome is subject to interpretation, in which case the UMA token-vote arbitrates the wording of the original market question.
Political markets occasionally see longer settlement when outcomes hinge on official certification rather than the polling result itself — the proposer waits for the certifying body's announcement, which can push payout 12-48 hours past the calendar end-date. Funds clear directly to your in-app USDC balance on Polygon. Withdrawals are non-custodial: send to any address you control, typical confirmation under 30 seconds, gas paid in USDC if you'd rather not hold MATIC.
Minimum order size on PolyGram is $1.00, with no maximum cap aside from available book depth. Orders route into Polymarket's on-chain CLOB on Polygon; the matching engine pairs YES buyers with NO buyers atomically — every executed trade is settled on-chain with no counterparty risk. For "Japan declassifies new UFO files in 2026?", political markets often see book depth concentrate in the 24-48 hours after a debate or policy event — spreads can widen to 3-5¢ for a few minutes after breaking news while makers re-price.
The trade ticket includes a slippage box (default 2%, configurable 0.1%-10%) that caps the worst-case entry price. At the current YES price of 21%, a $100 stake on YES buys roughly 476 shares; if YES resolves true those shares pay out at $1.00 each (a $476 gross payout, or +$376 profit). If NO resolves, the shares are worth $0. Slippage tolerance and resting-order depth determine the actual fill.
PolyGram charges 0% house edge — no spread mark-up, no rake on winnings, no withdrawal fees beyond network gas. The platform earns exclusively from optional features (copy-trade boosts, advanced order types, the yield vault on idle USDC); the trading surface itself is at-cost.
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The mechanics for trading "Japan declassifies new UFO files 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.
$6K in lifetime turnover and $8K of resting liquidity puts this market in the below the median by volume for politics 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.
As of today, traders on Polymarket price this outcome at 21%. 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 31 December 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. For "Japan declassifies new UFO files in 2026?", the considerations above apply directly — Political markets are exposed to information asymmetry between insider and retail traders, and to last-minute polling shifts that can move the line 15-20¢ in the final 48 hours. Long-dated political contracts also carry meaningful time decay if the underlying race is close.
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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