What is PredictMarketCap?

PredictMarketCap is a prediction market data aggregator that compares real-time odds across Polymarket and Kalshi. It ranks markets by volume, shows cross-platform price spreads, and helps you find where platforms disagree on the same event.

How do prediction markets work?

Prediction markets let traders buy and sell shares tied to real-world outcomes. Each share pays out $1 if the event happens. If a share trades at $0.60, the market is pricing a 60% probability. Prices move as traders buy and sell based on new information.

What is the difference between Polymarket and Kalshi?

Polymarket is a crypto-native prediction market that trades in USDC on the Polygon blockchain. Kalshi is a CFTC-regulated exchange that accepts US bank deposits and is legal for US residents. PredictMarketCap compares odds across both platforms so you can see where they agree and disagree.

What is prediction market arbitrage?

Arbitrage occurs when the same event has different prices on different platforms. For example, if Polymarket prices an outcome at 60% but Kalshi prices it at 55%, traders can potentially profit from the spread. PredictMarketCap highlights these cross-platform price differences.

Markets:21,858

Total Volume:$4.26B

24h Volume:$186.49M

Polymarket$4.05B

Kalshi$208.71M

Prediction Market Rankings

Real-time odds and volume across all prediction platforms. Sorted by total volume.

Active Markets Resolved

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#	Market	Odds	24h	Volume	Ends
1	2028 Dem Nominee2028 25 outcomes	25%Gavin Newsom	-0.1	$259.83M	2 years	Trade
2	2028 GOP Nominee2028 25 outcomes	42%J.D. Vance	-	$236.50M	2 years	Trade
3	Vance 2028 Presidency2028 Pres 24 outcomes	21%JD Vance	-0.5	$208.35M	2 years	Trade
4	Will Gavin Newsom be the Democratic Presidential nominee in 2028?2028 21 outcomes	26%Gavin Newsom	-1.0	$47.41M	2 years	Trade
5	Trump Acquire Greenland2027	89%No	+0.1	$29.38M	9 months	Trade
6	Will Luiz Inácio Lula da Silva win the 2026 Brazilian presidential election?2026 Pres 7 outcomes	48%Luiz Inácio Lula da Silva	-1.0	$19.28M	7 months	Trade
7	Will J.D. Vance be the nominee for the Presidency for the Republican party? 19 outcomes	42%J.D. Vance	0.0	$15.72M	2 years	Trade
8	Will the next Prime Minister of Hungary be Péter Magyar? 3 outcomes	62%Péter Magyar	+2.0	$15.41M	1 months	Trade
9	Who will win the next presidential election? 18 outcomes	22%J.D. Vance	0.0	$14.98M	3 years	Trade
10	Xi Jinping Out 20272027	91%No	-0.1	$6.97M	9 months	Trade
11	Will Jordan Bardella win the 2027 French presidential election?2027 Pres 15 outcomes	28%Jordan Bardella	-	$5.56M	1 years	Trade
12	Trump out as President before 2027?2027 Pres	83%No	-	$4.26M	9 months	Trade
13	Will the Democratic Party control the House after the 2026 Midterm elections?2026 2 outcomes	85%Democratic Party	-0.5	$3.69M	8 months	Trade
14	Will Emmanuel Grégoire win the Paris mayor election? 3 outcomes	68%Emmanuel Grégoire	-3.5	$3.11M	-	Trade
15	Putin out as President of Russia by end of 2026?2026 Pres	90%No	-	$2.60M	10 months	Trade
16	Billionaire one-time wealth tax passes in California election 2026?2026	65%No	-	$2.57M	8 months	Trade
17	2026 Balance of Power: D Senate, D House2026 4 outcomes	43%Democrats Sweep	-	$2.54M	8 months	Trade
18	Will Donald Trump win the Nobel Peace Prize in 2026?2026 2 outcomes	9%Donald Trump	-	$2.29M	7 months	Trade
19	Zelenskyy out as Ukraine president by end of 2026?2026 Pres	75%No	+0.5	$1.89M	9 months	Trade
20	Will United Russia (ER) gain the most seats in the next Russian parliamentary election? 4 outcomes	79%United Russia (ER)	+1.0	$1.66M	6 months	Trade
21	Russian strike on a NATO member by March 31?	96%No	-	$1.45M	3 weeks	Trade
22	Will Graham Platner be the Democratic nominee for Senate in Maine?Dem Nom 2 outcomes	76%Graham Platner	-1.0	$1.45M	4 months	Trade
23	Xi Jinping out by June 30?	97%No	+0.4	$1.44M	3 months	Trade
24	Will the Democrats win the 2028 US Presidential Election?2028 Pres 2 outcomes	55%Democratic	-	$1.43M	2 years	Trade
25	Will Ivan Cepeda Castro win the 2026 Colombian presidential election?2026 Pres 6 outcomes	46%Iván Cepeda Castro	-	$1.33M	3 months	Trade
26	Will House Control be Democratic AND Senate Control be Democratic for Feb 2027?2027 3 outcomes	41%D-House, D-Senate	-1.0	$1.25M	11 months	Trade
27	Ukraine joins NATO before 2027?2027	97%No	+0.1	$1.10M	9 months	Trade
28	Will Chong Won-oh win the 2026 Seoul Mayoral Election2026 4 outcomes	77%Chong Won-oh	+2.5	$1.02M	2 months	Trade
29	Trump-Denmark Greenland deal signed by March 31?	98%No	-0.4	$983.2K	3 weeks	Trade
30	Will Benjamin Netanyahu be the next Prime Minister of Israel? 5 outcomes	62%Benjamin Netanyahu	+2.0	$879.2K	9 months	Trade
31	Odds Trump acquires Greenland before 2027 hit 30% by March 31?2027	98%No	+0.1	$871.3K	3 weeks	Trade
32	Putin out as President of Russia by June 30?	96%No	-0.1	$773.6K	3 months	Trade
33	Will Trump and Putin not meet? 8 outcomes	71%No meeting by June 30	-1.9	$750.5K	3 months	Trade
34	Will no next Prime Minister of the United Kingdom be appointed in 2026?2026 7 outcomes	34%No Next PM in 2026	-1.0	$724.0K	9 months	Trade
35	Will Trump visit China by April 30?	87%Yes	-	$720.0K	1 months	Trade
36	Will the Republican Party control the Senate after the 2026 Midterm elections?2026 2 outcomes	55%Republican Party	-	$678.3K	8 months	Trade
37	Will CDU win the most seats in the 2026 Baden-Württemberg parliamentary elections?2026 2 outcomes	68%CDU	-27.0	$660.3K	Tomorrow	Trade
38	Will Marco Rubio be the nominee for the Vice Presidency for the Republican party? 9 outcomes	29%Marco Rubio	+1.0	$597.0K	2 years	Trade
39	Will TISZA – Respect and Freedom Party (TISZA) win the most seats in the next Hungarian parliamentary election? 2 outcomes	62%TISZA	-2.0	$581.3K	1 months	Trade
40	Trump impeached by end of 2026?2026	90%No	+1.0	$556.0K	9 months	Trade
41	Will Rafael López Aliaga win the 2026 Peruvian presidential election?2026 Pres 8 outcomes	44%Rafael López Aliaga	+1.0	$536.4K	1 months	Trade
42	Trump out as President before GTA VI?	53%Yes	-	$527.2K	4 months	Trade
43	Will Trump pardon Ghislaine Maxwell by end of 2026?2026	92%No	+0.5	$483.3K	9 months	Trade
44	Will legislation that requires proof of U.S. citizenship as a condition of registering to vote in federal elections become law before Jan 1, 2027?2027 2 outcomes	21%Before Jan 1, 2027	0.0	$442.6K	10 months	Trade
45	Will Keir Starmer leave Prime Minister of the United Kingdom before Sep 1, 2026?2026 3 outcomes	67%Before Sep 1, 2026	+2.0	$393.0K	5 months	Trade
46	Will Trump resign by December 31, 2026?2026	94%No	-	$385.6K	9 months	Trade
47	NATO x Russia military clash by March 31, 2026?2026	96%No	-0.4	$376.7K	3 weeks	Trade
48	Will Angela Rayner be the next Prime Minister of United Kingdom? 6 outcomes	26%Angela Rayner	0.0	$364.6K	3 years	Trade
49	Will the bull case for Trump occur in 2026?2026	9%Yes	+1.0	$358.1K	1 years	Trade
50	Will Janez Janša be the next Prime Minister of Slovenia? 3 outcomes	74%Janez Janša	-0.5	$282.4K	2 weeks	Trade

Prediction Market Rankings

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