PolymarketOtherOpen

Will the US confirm that aliens exist before 2027?

3¢+3233

last trade · closes 2027-01-01

Open on Polymarket (opens in a new tab)Compare across venues

24h volume$64.7K
Open interest$886.3K
Lifetime volume$43.2M

Quick answers

Where is "Will the US confirm that aliens exist before 2027?" cheaper right now?
Polymarket last trade 3¢ (+3233). No matched twin on another venue, so there is no cross-venue price to compare.
When does "Will the US confirm that aliens exist before 2027?" settle?
Closes 2027-01-01. Pays Yes when: 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…

Odds history

Implied odds over timebid/askmid10.0%5.0%0.0%Oct 26 00:00 UTCNov 01 22:04 UTC

199 archived bid/ask quotes for "Will the US confirm that aliens exist before 2027?" on Polymarket, 2026-10-26 to 2026-11-01.

How this market settles

hard deadline December 31, 2026

Pays Yes when
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…
Who decides
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.
When
Closes 2027-01-01.
Read the full rules Polymarket publishes

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.

Heads up: Polymarket has 4 disputed resolutions in our archive. Read the rules before you bet.

What this bet really costs you

  • On $100 at 3¢ you pay $6.79 in fees on Kalshi

    0.20¢ per contract · 3333 contracts

  • On $100 at 3¢ you pay $4.85 in fees on Polymarket US

    0.15¢ per contract · 3333 contracts

Polymarket rate read from the catalog for sports_fees_v3 (15,702 markets in a sample of 20,000 rows drawn from 580,600 in the archive). Kalshi's rate is its published general schedule; the PDF has been rate-limiting fetches, so it is documented rather than verified.

Exchange-side taker fees per each venue's published formula (rate × contracts × price × (1 − price)); contracts = stake ÷ price, rounded down to whole contracts. Fees peak at 50¢ and shrink toward the extremes. Most quoted cross-venue “arbs” are negative-EV after these fees; the taker-fee breakeven on a Kalshi/Polymarket pair is roughly 3.5–4¢.

Free channel: gaps at the next rebuild. Members: the instant one matching your watches, in your DM.

Polymarket moved 8¢ on US recession in 2026? in the last 60 minutes (12¢ → 20¢). Kalshi hasn't caught up — still sitting at 14¢.Get alerts (opens in a new tab)
Members get every gap, fork and lag as the scan finds it, 35–55 minutes after the hour.
Why the board stays free
Real-time scanning costs us per scan. The 6-hour board stays free forever.

Data: Polymarket id 0x747dc809fb79e1b05be09c42d6179459a58de2ef3e40f02484a4e1260f741f75 · ← All tracked markets

Gaps close in hours.

The free channel posts at the next rebuild; members' DMs arrive as the scan finds it.