U.S. confirm that aliens exist before 2027 at 4.0% on Kalshi

Confirmation remains a longshot

Traders are assigning a low probability to U.S. confirmation of alien existence before 2027. According to PredictionBubbles’ technology board, the Kalshi contract is priced at 4.0%, as reported on Oct 16, 2026, at 10:24 AM ET.

The accompanying summary puts the Polymarket version at 4.1%, with $41.7M traded. Both readings place the outcome firmly in longshot territory, despite the substantial cumulative trading reported for Polymarket.

What the board establishes

According to PredictionBubbles, its service aggregates prices from Kalshi and Polymarket across 2135 open markets, refreshing its data every 15 minutes. The alien-confirmation contract appears in its technology category.

The supplied material does not include the contract’s detailed settlement criteria or a 24-hour price change. It therefore does not establish what evidence would qualify as U.S. confirmation, or whether traders have recently raised or lowered their assessment.

The distinction between trading activity and current market depth also matters. PredictionBubbles describes volume as cumulative turnover, separate from available order-book liquidity and positions that remain open. The reported $41.7M does not, by itself, establish either of those other measures.

What it means for prediction markets

• The prices reflect trader expectations, not evidence of aliens. The question concerns U.S. confirmation before 2027, rather than alien existence independently of an official announcement.
• The two venue readings are close, but the supplied material does not establish that their settlement requirements are identical.
• Volume does not establish momentum. Without a reported price change or recent trading pace, the cumulative Polymarket figure cannot show whether interest is accelerating.
• Resolution wording remains consequential. The detailed rules are needed to assess which announcement or evidence would settle either contract.