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:17,431

Total Volume:$4.19B

24h Volume:$176.03M

Polymarket$4.02B

Kalshi$172.59M

Prediction Market Rankings

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

Active Markets Resolved

All Politics Sports Crypto Economics Tech Culture

#	Market	Odds	24h	Volume	Ends
1	2028 Dem Nominee2028 26 outcomes	25%Gavin Newsom	-0.1	$274.16M	2 years	Trade
2	2028 GOP Nominee2028 24 outcomes	42%J.D. Vance	-	$227.21M	2 years	Trade
3	Vance 2028 Presidency2028 Pres 24 outcomes	21%JD Vance	-0.5	$208.27M	2 years	Trade
4	Will Spain win the 2026 FIFA World Cup?2026 18 outcomes	15%Spain	+0.1	$80.36M	4 months	Trade
5	Will the Oklahoma City Thunder win the 2026 NBA Finals?2026 12 outcomes	36%Oklahoma City Thunder	-	$71.83M	3 months	Trade
6	Will Arsenal win the 2025–26 Champions League?2025 13 outcomes	28%Arsenal	-	$54.94M	2 months	Trade
7	Will Gavin Newsom be the Democratic Presidential nominee in 2028?2028 21 outcomes	27%Gavin Newsom	0.0	$47.40M	2 years	Trade
8	Christ Return by 20272027	96%No	+0.1	$39.59M	9 months	Trade
9	Trump Acquire Greenland2027	89%No	+0.1	$29.38M	9 months	Trade
10	Will the Oklahoma City win the 2026 Pro Basketball Finals?2026 12 outcomes	40%Oklahoma City	+1.0	$28.30M	2 years	Trade
11	Avalanche NHL Cup2026 11 outcomes	25%Colorado Avalanche	-1.3	$26.41M	3 months	Trade
12	Will Jordan Spieth win the 2026 Masters tournament?2026 9 outcomes	3%Jordan Spieth	-0.1	$24.64M	1 months	Trade
13	Iran Regime Fall Mar31	87%No	-0.1	$24.43M	3 weeks	Trade
14	Russia Ukraine Ceasefire 2026	98%No	-0.1	$23.02M	3 weeks	Trade
15	Will Luiz Inácio Lula da Silva win the 2026 Brazilian presidential election?2026 Pres 7 outcomes	47%Luiz Inácio Lula da Silva	-1.0	$19.26M	7 months	Trade
16	Iran Strait Closure	96%Yes	+3.0	$18.82M	9 months	Trade
17	Iran Supreme Leader 10 outcomes	43%Mojtaba Khamenei	-	$16.30M	9 months	Trade
18	Will the next Prime Minister of Hungary be Péter Magyar? 3 outcomes	62%Péter Magyar	+2.0	$15.40M	1 months	Trade
19	Aliens Exist 20272027	83%No	+1.0	$15.00M	9 months	Trade
20	Who will win the next presidential election? 14 outcomes	22%J.D. Vance	0.0	$13.64M	3 years	Trade
21	Will J.D. Vance be the nominee for the Presidency for the Republican party? 12 outcomes	42%J.D. Vance	0.0	$13.59M	2 years	Trade
22	Arsenal 2025-26 EPL2025 2 outcomes	81%Arsenal	-	$13.58M	2 months	Trade
23	Russia-Ukraine 20262026	62%No	-	$11.20M	9 months	Trade
24	Lens Ligue 1 20252025	12%Lens	-0.5	$11.05M	2 months	Trade
25	Iran Regime Fall	67%No	+2.0	$10.33M	3 months	Trade
26	China Invade Taiwan2026	89%No	-0.1	$10.31M	9 months	Trade
27	GTA VI Release2026	98%No	-0.3	$10.02M	2 months	Trade
28	Christ Return vs GTA	52%No	-	$9.86M	4 months	Trade
29	Will the Los Angeles Lakers win the NBA Western Conference Finals? 3 outcomes	5%Los Angeles Lakers	-0.1	$8.80M	3 months	Trade
30	Greenland Acquisition 2022026	84%No	-	$8.66M	9 months	Trade
31	Will Seattle win the 2027 Pro Football Championship?2027 11 outcomes	12%Seattle	+2.0	$8.53M	2 years	Trade
32	Iran Regime Fall 20272027	56%No	-1.0	$8.40M	9 months	Trade
33	Raptors E. Finals 3 outcomes	4%Toronto Raptors	-1.4	$8.29M	3 months	Trade
34	Nebius Group Acquisition 2027	76%No	-	$7.85M	9 months	Trade
35	Will Shai Gilgeous-Alexander win the 2025–2026 NBA MVP?2025 4 outcomes	76%Shai Gilgeous-Alexander	-1.0	$7.53M	3 months	Trade
36	Will One Battle After Another win Best Picture at the 98th Academy Awards? 4 outcomes	74%One Battle After Another	-	$7.48M	1 weeks	Trade
37	Xi Jinping Out 20272027	91%No	-0.1	$6.97M	9 months	Trade
38	US Measles 20262026	80%No	-0.5	$6.27M	9 months	Trade
39	Will George Russell be the 2026 F1 Drivers' Champion?2026 6 outcomes	46%George Russell	+2.0	$5.87M	9 months	Trade
40	Will 1 Fed rate cut happen in 2026?2026 6 outcomes	28%1 (25 bps)	-	$5.77M	9 months	Trade
41	Will there be no change in Fed interest rates after the April 2026 meeting?2026 4 outcomes	86%No change	+2.0	$5.34M	1 months	Trade
42	Will Colorado Avalanche win the 2025-26 Stanley Cup Finals?2025 6 outcomes	23%Colorado Avalanche	-1.0	$4.75M	2 years	Trade
43	Trump out as President before 2027?2027 Pres	83%No	-	$4.26M	9 months	Trade
44	Will Donald Trump win the Nobel Peace Prize in 2026?2026 3 outcomes	9%Donald Trump	-	$4.15M	7 months	Trade
45	Bitcoin Price Prediction for December 31, 2026 11 outcomes	41%Above 3.00%	-	$3.94M	-	Compare
46	Will Bitcoin reach $250,000 by December 31, 2026?2026	95%No	-	$3.93M	10 months	Trade
47	Will Bitcoin dip to $15,000 by December 31, 2026?2026	94%No	-	$3.71M	10 months	Trade
48	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
49	Will Reza Pahlavi enter Iran by March 31?	96%No	-	$3.67M	3 months	Trade
50	Will bitcoin hit $1m before GTA VI?	51%No	-0.1	$3.44M	4 months	Trade
51	US x Iran ceasefire by March 15?	91%No	-	$3.40M	-	Trade

Prediction Market Rankings

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