Aug 28, 2026
Probability fell from 23.5% to 16.5% — a 7.0-point move over the past day.
Katy Perry and Justin Trudeau Engagement: Odds & Probability
Markets price the chance that Katy Perry and Justin Trudeau become engaged by December 31, 2026, at 13.0%, a reading that makes it unlikely.
13.0%-3.0 pts 24h
Updated · Volume $53.0K
Across platforms
6.0 pt spread- Polymarket13.0%
- Kalshi19.0%
Matched automatically by question and resolution date. How we match.
This is a binary market; the listed outcome tracks the occurrence of an engagement, with all other possibilities forming the No side.
Context
Aug 28, 2026
Probability fell from 23.5% to 19.0% — a 4.5-point move over the past day.
Aug 1, 2026
Probability rose from 19.0% to 22.0% — a 3.0-point move over the past day.
Jul 31, 2026
Probability fell from 20.0% to 19.0% — a 1.0-point move over the past day.
Jul 30, 2026
Probability fell from 26.0% to 19.0% — a 7.0-point move over the past day.
Show earlier updates
Jul 28, 2026
Probability rose from 18.5% to 26.0% — a 7.5-point move over the past day.
Jul 27, 2026
Probability fell from 24.0% to 18.5% — a 5.5-point move over the past day.
The probability stands at 13.0%, having traded between 8.0% and 23.5% in recent trading. The market resolves to Yes if an engagement between Katy Perry and Justin Trudeau is announced by the resolution deadline of Jan 1, 2027, with a wedding being treated as meeting the condition. The primary resolution sources are official statements from either person or their representatives, but a consensus of credible reporting can also trigger settlement. Otherwise the market resolves to No. The only formal conditions that can shift the probability are the approach of the Jan 1, 2027 deadline without an announcement or any credible signal from the designated sources. The market will settle only upon an official confirmation or the passing of the deadline.
FAQ
What must happen for the market to resolve to Yes?
An official announcement that Katy Perry and Justin Trudeau are engaged to be married must be made by the resolution deadline, or credible reporting must reach consensus that such an engagement has occurred.
If Perry and Trudeau marry without a prior engagement announcement, does that resolve Yes?
Yes. The market treats marriage as qualifying for a Yes resolution.
Who are the resolution sources?
Official statements from Katy Perry, Justin Trudeau, or their authorized representatives are primary. A consensus of credible reporting from reliable news outlets can also be used.
What happens if no announcement is made by the deadline?
The market resolves to No.
Can the market resolve before the deadline?
Yes. If a qualifying announcement is made earlier, the market will resolve to Yes at that point.
Data: Polymarket, Kalshi · Methodology · Not financial advice