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Live prediction market odds for Will the U.S. confirm that aliens exist before 2027?. Compare prices across Kalshi and Polymarket US and Polymarket and Opinion and Predict.fun.

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Kalshi

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Claim offerLegal in USAVerified Sep 14, 2026

Kalshi / Polymarket US / Polymarket / Opinion / Predict.fun

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Will the U.S. confirm that aliens exist before 2027?

2026-12-31

Best price · tap to trade

December 315¢20.00xKalshi

About This Market

Traders give December 31 about a 4.7% chance. Compare prices from Kalshi, Polymarket US, Polymarket, Opinion, and Predict.fun. The largest cross-platform price difference is 3.9 percentage points.

Traders give December 31 about a 4.7% chance. Compare prices from Kalshi, Polymarket US, Polymarket, Opinion, and Predict.fun. The largest cross-platform price difference is 3.9 percentage points.

Polymarket and Kalshi are tracking whether the U.S. will confirm the existence of aliens before 2027. This event has implications for scientific understanding and public interest in extraterrestrial life, influencing both government transparency and space exploration initiatives.

Price History

Multi-Platform Probabilities
Loading 30D data…

Live Markets

5 platforms
OutcomeConsensus
Kalshi
Polymarket US
Polymarket
Opinion
Predict.fun
Best price
D3
December 31
5%
Kalshi5¢
Polymarket US6¢
Polymarket4¢
Opinion7¢
Predict.fun4¢
Kalshi22.22x5¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
4.5%4¢5¢96¢96¢
Polymarket USPolymarket US
6.0%5¢6¢94¢95¢
PolymarketPolymarket
3.5%4¢4¢96¢97¢
OpinionOpinion
—0¢7¢93¢100¢
Predict.funPredict.fun
3.6%4¢4¢96¢97¢
KalshiKalshiPolymarket USPolymarket USPolymarketPolymarketOpinionOpinionPredict.funPredict.fun

Best price among US-regulated venues.

Smart Trade Router

$
¢

Resolution Oracles

KalshiKalshi
White House
OpinionOpinion
Opinion AI
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
Read Full Market Rulebooks
Stats
Spread3.9%
Platforms5
Candidates1
Leader

December 31

4.7% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Will the U.S. confirm that aliens exist before 2027?

Official settlement criteria, resolution sources, and edge cases across Kalshi and Opinion and Polymarket and Polymarket US and Predict.fun.

KalshiKalshi
Primary Rule

If the President, any member of the Cabinet, any member of the Joint Chiefs of Staff, or any US federal agency definitively states that extraterrestrial life or technology exists before Jan 1, 2027, then the market resolves to Yes.

Resolution Oracles
White House
OpinionOpinion
Primary Rule

This market will resolve to "Yes" if the President of the United States, any member of the Cabinet of the United States, any member of the Joint Chiefs of Staff, or any US federal agency definitively states that extraterrestrial life or technology exists by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The primary resolution source for this market will be official information from the government of the United States, however a consensus of credible reporting will also be used.

Resolution Oracles
Opinion AI
PolymarketPolymarket
Primary Rule

This market will resolve to "Yes" if the President of the United States, any member of the Cabinet of the United States, any member of the Joint Chiefs of Staff, or any US federal agency definitively states that extraterrestrial life or technology exists by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The primary resolution source for this market will be official information from the government of the United States, however a consensus of credible reporting will also be used.

Resolution Oracles
UMA Optimistic OracleConsensus of Sources
Polymarket USPolymarket US
Predict.funPredict.fun
Primary Rule

This market will resolve to "Yes" if the President of the United States, any member of the Cabinet of the United States, any member of the Joint Chiefs of Staff, or any US federal agency definitively states that extraterrestrial life or technology exists by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The primary resolution source for this market will be official information from the government of the United States, however a consensus of credible reporting will also be used.

Frequently Asked Questions

What factors could influence the U.S. confirmation of alien existence?

Government disclosures, scientific discoveries, and public pressure for transparency could all play significant roles. Additionally, advancements in space exploration and technology may provide new evidence.

How do prediction markets work for events like this?

Prediction markets allow participants to buy and sell shares based on the likelihood of specific outcomes. Prices fluctuate based on collective beliefs and information, reflecting the perceived probability of events.

What are the implications of confirming alien existence?

Confirming alien existence could reshape scientific paradigms and influence public policy regarding space exploration. It may also spark widespread cultural and philosophical discussions about humanity's place in the universe.

Will the U.S. confirm that aliens exist before 2027: what does this prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket US, Polymarket, Opinion, Predict.fun in one place. Each price reflects the market’s implied probability, not a guaranteed result.

Will the U.S. confirm that aliens exist before 2027: what are the current odds?

The latest available prices are December 31: 4.5¢ on Kalshi, 3.5¢ on Polymarket, 6.0¢ on Polymarket US, 7.4¢ on Opinion, 3.6¢ on Predict.fun. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.

Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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Final odds
Smart Money Positioning (24 hours)
Full Feed

Smart money is heavily fading December 31

Smart Money Consensus$1.7K
$1.7KNo
Smart Traders Split2
2No
Polymarket USBuy No at 95¢Best price among US-regulated venues.

$10K+ lifetime-profit wallets · 24h net flow

December 31
No$1.7K · 2 whales

$10K+ lifetime-profit wallets · 24h net flow

Smart Money Feed
Full Feed

Live tracking of high-volume trades from historically profitable accounts.

Trader up $396K lifetime bet $1K on No at 96¢

10h ago
PolymarketPolymarket USWill the US confirm that aliens exist before 2027?Trade on Polymarket US →

Trader up $34.6K lifetime sold $1.9K of No at 96¢

16h ago
PolymarketPolymarket USWill the US confirm that aliens exist before 2027?Trade on Polymarket US →

Trader up $396K lifetime bet $1.7K on No at 96¢

17h ago
PolymarketPolymarket USWill the US confirm that aliens exist before 2027?Trade on Polymarket US →

Trader up $396K lifetime bet $791 on No at 96¢

17h ago
PolymarketPolymarket USWill the US confirm that aliens exist before 2027?Trade on Polymarket US →

Trader up $396K lifetime bet $2.4K on No at 96¢

17h ago
PolymarketPolymarket USWill the US confirm that aliens exist before 2027?Trade on Polymarket US →