Odds on Aliens: Will the U.S. Confirm Aliens Exist Before 2027?
Will the U.S. government confirm that extraterrestrial life or technology exists before 2027? The aggregate Yes probability is 3.9%, with Kalshi at 5.4%, Polymarket at 3.8%, and Polymarket US at 7.0%. No is favored at 96.1%. The Pentagon has published five batches of UAP files through August 7, 2026, but none constitutes a qualifying official confirmation. The tracker updates every 30 minutes and currently shows $1.9M in rolling 30-day activity across the included venues.
US prediction markets with trading on UFO disclosure files
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Kalshi, Polymarket & Polymarket US odds on U.S. alien confirmation
Current probabilities across platforms with liquidity indicators
NONo
Vol $1.9M
Spread 2.3%
Agg
96.1%↑ +3.3%Will the US confirm that aliens exist before 2027?
P
96.3%
K
94.7%
U
94.0%
YEYes
Vol $1.9M
Spread 3.3%
Agg
3.9%↓ -3.3%Will the US confirm that aliens exist before 2027?
U
7.0%
K
5.4%
P
3.8%
| Outcome | Aggregated | Spread | Volume | Kalshi | Polymarket | Polymarket US |
|---|---|---|---|---|---|---|
NO No Will the US confirm that aliens exist before 2027? | 96.1% ↑ +3.3% | 2.3% | $1.9M |
Kalshi
94.7%
|
Polymarket
96.3%
|
Polymarket US
94.0%
|
YE Yes Will the US confirm that aliens exist before 2027? | 3.9% ↓ -3.3% | 3.3% | $1.9M |
Kalshi
5.4%
|
Polymarket
3.8%
|
Polymarket US
7.0%
|
Probability Over Time
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Pentagon UFO releases have not confirmed extraterrestrial life
The disclosure story has moved well beyond the Pentagon’s missed April 14 deadline. On May 8, the department launched the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE) and began publishing previously unreleased UAP records. Further batches followed on May 22, June 12, July 10 and August 7.
The fifth release added 41 files and videos, bringing the public collection to 162 files according to reporting published after the release. The records include unresolved military sightings, imagery and witness accounts. They do not amount to an official statement that extraterrestrial life or technology exists, so the alien-confirmation market remains unresolved and No remains favored.
The White House also registered aliens.gov and alien.gov in March 2026. The registrations were consistent with preparations for public file releases, but they were not evidence of an imminent confirmation.
Major events and how alien-confirmation odds moved
Listed latest first, the table tracks the Kalshi Yes price around the major public events in this disclosure cycle. Movement is shown from the last hourly price before the event’s UTC date to the final hourly price approximately 48 hours later; notable interim highs are included. The timing is descriptive and does not prove that each event caused the full move.
| Date | Major event | Kalshi Yes movement | What happened |
|---|---|---|---|
| Aug. 7, 2026 | The Pentagon published its fifth PURSUE batch, adding 41 files and videos; reporting put the public collection at 162 files. | 6.7% → 7.0% (briefly 7.9%) | A small increase, with no qualifying confirmation. |
| July 10, 2026 | The Pentagon published its fourth PURSUE batch of UAP files. | 7.5% → 8.5% (briefly 8.6%) | A modest short-term increase. |
| June 12, 2026 | The Pentagon published its third PURSUE batch of UAP files. | 13.2% → 12.4% (briefly 14.0%) | Odds continued trending lower after another non-confirming release. |
| May 22, 2026 | The Pentagon published its second PURSUE batch of UAP encounter records. | 16.2% → 16.1% (briefly 16.6%) | Minimal sustained response. |
| May 8, 2026 | The Pentagon launched the PURSUE database and published the first batch of UAP files. | 24.4% → 21.6% (briefly 28.3%) | Initial excitement faded because the files did not confirm extraterrestrial life. |
| April 17, 2026 | Trump said the review had found “many very interesting documents” and that releases would begin soon. | 20.7% → 20.5% (briefly 22.9%) | A brief rise faded within 48 hours. |
| April 14, 2026 | The Pentagon missed Rep. Anna Paulina Luna’s requested deadline for 46 specified UAP videos. | 19.8% → 19.6% | Odds were nearly unchanged. |
| March 31, 2026 | Luna requested 46 specifically identified UAP videos and set an April 14 deadline. | 19.5% → 18.7% | Congressional pressure produced no sustained increase. |
| March 18, 2026 | The White House registration of aliens.gov and alien.gov became public, according to federal records. | 16.0% → 21.0% (briefly 22.0%) | Yes rose during the 48-hour window, although timing alone does not establish causation. |
| Feb. 23, 2026 | Defense Secretary Pete Hegseth confirmed that the Pentagon had begun the file review. | 20.0% → 24.0% | Yes remained elevated, but there was still no confirmation of extraterrestrial life. |
| Feb. 20, 2026 | Trump directed the Pentagon and other agencies to identify and release government UFO and UAP files. | 19.0% → 22.0% (briefly 30.0%) | The largest sustained news-driven jump in the period. |
| Feb. 14, 2026 | Barack Obama said aliens are “real,” then clarified that he meant life is statistically likely elsewhere and that he had seen no evidence of contact. | 17.0% → 18.0% (briefly 21.0%) | A short-lived increase; the clarification did not meet the contract standard. |
| Feb. 9, 2026 | The “Disclosure Day” movie trailer aired during the Super Bowl. | 16.0% → 15.0% | Little sustained reaction. |
The pattern is notable: statements about transparency created short-lived spikes, while successive file releases without a qualifying confirmation were followed by lower Yes prices over time. The contract moved from the high teens and 20s during the February–May news cycle to the mid-single digits by August.
How to trade the alien-confirmation market
Kalshi, Polymarket and Polymarket US list binary Yes/No contracts on whether the U.S. will confirm extraterrestrial life or technology before 2027. A contract price between $0.01 and $0.99 can be read as the market’s implied probability. If Yes trades at $0.10, for example, the market is pricing roughly a 10% chance; a winning contract pays $1.00 before fees. Use our arbitrage and fee calculators to compare prices and estimate trading costs.
Traders can sell before the deadline rather than holding through settlement. That makes the market sensitive to speeches, document releases, congressional pressure and new footage. Those events can move the price even when they do not satisfy the resolution rules.
This is a narrowly defined bet. A qualifying person or federal agency must definitively state that extraterrestrial life or technology exists. Releasing unexplained footage, acknowledging unidentified objects or saying that life is statistically likely elsewhere is not enough.
How does the alien market resolve and pay out?
The core Yes trigger is aligned across Kalshi and Polymarket, although their detailed resolution and source provisions differ. The market resolves Yes if, by December 31, 2026, one of the following definitively states that extraterrestrial life or technology exists:
- The president of the United States
- Any qualifying member of the Cabinet
- Any member of the Joint Chiefs of Staff
- Any U.S. federal agency
Kalshi additionally defines its qualifying Cabinet group to include the heads of the 15 Cabinet departments, plus the EPA administrator, White House chief of staff, director of national intelligence, OMB director, CIA director, U.S. trade representative, U.N. ambassador, chair of the Council of Economic Advisers, SBA administrator and director of the Office of Science and Technology Policy.
The keyword is “definitively.” Obama’s February comment did not qualify after he clarified that he had seen no evidence of extraterrestrial contact. Trump’s order to release files also did not qualify. None of the five PURSUE releases through August 7 contains the kind of official statement required for a Yes settlement.
The No side is therefore not a claim that life exists nowhere else in the universe. It is a bet that no qualifying U.S. official or federal agency will make the required definitive statement before January 1, 2027.
What has driven the alien odds?
Kalshi launched its contract on December 5, 2025, after Polymarket opened a comparable market in late November. Prices initially traded around 10% to 15%. The largest move came after Trump’s February 20 directive: Kalshi reached roughly 30% before giving back part of the gain.
Trump’s April 17 statement and the May 8 launch of PURSUE produced additional short-term volatility. But each subsequent release added reports and imagery without an official extraterrestrial confirmation. By August, Yes had fallen into the mid-single digits across the larger venues.
Differences between venue prices can reflect liquidity, order-book depth and trading activity. The dynamic board above shows the current cross-platform spread; thinly traded venues can temporarily display wider prices than Kalshi or Polymarket Global.
Related alien and UAP prediction markets
Will Trump release new UFO files before 2027? This was a different question from alien confirmation. The release threshold was much lower, and public releases began on May 8. Publishing UAP records did not require the government to state that aliens exist.
Will a new interstellar visitor be confirmed before 2027? Interstellar objects originate outside our solar system; their existence is already established. That market concerns the timing of another detection, not confirmation of extraterrestrial life.
What will Trump say? Kalshi’s recurring mention markets sometimes include UFO- or disclosure-related terms, offering shorter-duration exposure to the news cycle rather than the strict alien-confirmation standard.
How likely is an official alien disclosure?
The market continues to price official confirmation as a low-probability event. The Pentagon’s All-domain Anomaly Resolution Office said in its 2024 historical review that it found no empirical evidence that a reported UAP represented extraterrestrial technology. AARO has acknowledged unresolved cases, but unresolved does not mean extraterrestrial.
Congressional pressure increased in 2026, including Luna’s request for 46 specified videos and later disclosure forums. The Pentagon subsequently began publishing records through PURSUE. The releases improved public access to government material, but they did not cross the contract’s much higher threshold for a definitive confirmation.
The White House domain registrations and continued public releases show that UAP transparency remains politically active. They should not be treated as proof of extraterrestrial life or as a guarantee that a qualifying statement is coming.
At any quoted Yes price, the potential return changes with the market. A Yes contract bought for 6¢ would cost $0.06 and pay $1.00 if it settles Yes, before fees; using a fixed payout ratio in editorial copy quickly becomes stale.
The next catalysts are additional PURSUE releases, official agency analysis of the published cases, confirmed congressional hearings or testimony, and—most importantly for settlement—any definitive statement by a qualifying official or federal agency before the deadline.