Biggest prediction-market swings, last 24 hours

Kalshi and Polymarket questions whose odds moved the most since yesterday: where each stood a day ago, where it trades now, and how much changed hands.

updated
10+ point swings
2
of 9 markets on this list
Up / down
4 / 5
markets whose odds rose vs. fell
24h volume
$130K
traded in the markets on this list
Reset

Movers

9 markets · 24h
Market24h ago → nowMove24h volSettles
Will Gemini Carbon be released between November 9 and November 15, 2026?
P Tech & AI · +2 more outcomes moved
55% → 70%
+16 $17K Jan 04, 2027
Will Google have the best AI model at the end of November 2026?
P Tech & AI
72% → 58%
-13 $12K Dec 01, 2026
Will Google have the best AI model at the end of December 2026?
P Tech & AI · +1 more outcome moved
58% → 54%
-5 $17K Dec 31, 2026
Will SpaceX have the highest IPO Market Cap 2026?
P Tech & AI · +1 more outcome moved
50% → 54%
+3 $12K Jan 02, 2027
Will OpenAI announce another Millennium Prize solution by December 31, 2026?
P Tech & AI
18% → 14%
-4 $9K Jan 01, 2028
Best AI on Dec 31, 2026? Gemini
K Tech & AI
55% → 52%
-2 $17K Dec 31, 2026
Will Missouri enact a data center moratorium by December 31, 2027?
P Tech & AI
16% → 14%
-3 $30K Jan 01, 2029
Will Waymo operate ride-hailing in Denver, CO before Jan 1, 2027?
K Tech & AI
88% → 90%
+3 $9K Dec 31, 2026
Will Anthropic raise between $105B and $115B in its IPO? $105B to $115B
P Tech & AI
16% → 18%
+2 $7K Jan 01, 2028

About this list

What counts as a swing. The change in a market's YES price since the same time yesterday, in percentage points. Only markets with real trading count: at least the volume you pick (default $5K) in the last 24 hours. A market whose best bid and best ask are more than 10 points apart is left out too, because the price halfway between them is not one anyone traded at.

Live questions only. Markets that have effectively resolved (priced under 8% or over 92%), contracts settling within 36 hours and brand-new listings are left out, so a result being recorded or a first trade doesn't read as a change of mind. Sports are excluded unless you pick the Sports category.

Ranking. "Biggest swings" weighs the size of the move by how much doubt remains, so a 30% → 60% swing outranks a 90% → 99% one. Sort by "Most points" for the raw move.

One line per event. Outcomes in the same event usually move together (every rung of a "Bitcoin above $X" ladder, every candidate in a race), so each event shows its biggest mover and a count of the others. Tick "Show every outcome" to list them all.

All prediction markets → · Settling this week →