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
4
of 14 markets on this list
Up / down
4 / 10
markets whose odds rose vs. fell
24h volume
$143K
traded in the markets on this list
Reset

Movers

14 markets · 24h
Market24h ago → nowMove24h volSettles
Will the maximum SP500 value reach 7999.99 by Jan 1, 2027? 8,000 or above
K Markets & Companies
45% → 32%
-14 $11K Jan 01, 2027
Will Zscaler, Inc. report above 825 customers with arr of at least $1m in Q1 2027?
K Markets & Companies
34% → 10%
-23 $7K Mar 24, 2027
Will Alphabet be the third-largest company in the world by market cap on December 31?
P Markets & Companies
26% → 11%
-15 $6K Jan 01, 2027
Will Anthropic IPO by December 15, 2026?
P Markets & Companies · +2 more outcomes moved
92% → 82%
-11 $7K Jan 01, 2027
Will Anthropic's valuation hit (HIGH) $2.5T by December 31?
P Markets & Companies · +1 more outcome moved
36% → 28%
-9 $12K Jan 05, 2027
Will the maximum WTI front month settle price reach $115.01 by Dec 31, 2026? $115.01 or above
K Markets & Companies · +1 more outcome moved
46% → 42%
-4 $10K Dec 31, 2026
When will Anthropic officially announce an IPO? Before Dec 1, 2026
K Markets & Companies · +1 more outcome moved
82% → 78%
-5 $11K Dec 01, 2026
Will Anthropic's market cap be between $2.0T and $2.25T at market close on IPO day? $2.0–$2.25T
P Markets & Companies · +2 more outcomes moved
18% → 22%
+4 $19K Jan 01, 2028
Will the S&P 500 be between 8000 and 8199.99 on Dec 31, 2026 at 4pm EST? 8,000 to 8,199.99
K Markets & Companies
17% → 12%
-5 $7K Dec 31, 2026
Will NVIDIA be the largest company in the world by market cap on December 31?
P Markets & Companies
53% → 56%
+3 $18K Jan 01, 2027
Will WTI Crude Oil (WTI) hit (HIGH) $120 in November?
P Markets & Companies · +1 more outcome moved
19% → 22%
+4 $9K Dec 01, 2026
Anthropic IPO before 2027?
P Markets & Companies
94% → 90%
-4 $5K Jan 01, 2027
Will Wendy's Credit Card Spend for October 2026 be above 81 ?
K Markets & Companies
74% → 72%
-2 $7K Nov 07, 2026
Will the Nasdaq-100 be between 29500 and 29999.99 at the end of Dec 31, 2026 at 4pm EST? 29,500 to 29,999.99
K Markets & Companies
6% → 8%
+2 $15K Dec 31, 2026

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 →