Prediction Market Volume: Kalshi & Polymarket Aggregated Data

Live Data
Weekly Notional Volume Total USD value of contracts traded during the last complete calendar week.
$10.3B
K Kalshi
$8.4B (81%)
P Polymarket
$1.9B (19%)
U Polymarket US
$5.9M (0%)
Active Markets Number of prediction markets currently open for trading on each platform.
226,978
K Kalshi
78,546 (35%)
P Polymarket
138,432 (61%)
U Polymarket US
10,000 (4%)
Weekly Transactions Total number of trades executed during the last complete calendar week.
75,596,947
K Kalshi
56,509,439 (75%)
P Polymarket
19,087,508 (25%)
U Polymarket US
— (—)
Open Interest Total USD value of unsettled contracts currently held by traders.
$1.2B
K Kalshi
$702.7M (57%)
P Polymarket
$496.1M (41%)
U Polymarket US
$28.2M (2%)
Last updated: August 7, 2026 at 11:42 PM PDT

Kalshi
CFTC Regulated
Volume (rolling)
24H $337.8M -32.0%
7D $3.2B -4.9%
30D $14.1B -4.7%
Top Categories (24h)
1 ⚽ Sports $176.7M
2 ₿ Crypto $118.9M
3 💰 Finance $6.3M
Top Markets (24h)
1
Van de Zandschulp vs Hurkacz
🎾 Sports $3.9M
2
Joint vs Samsonova
🎾 Sports $3.8M
3
Andreeva vs Fernandez
🎾 Sports $3.4M
Polymarket
Decentralized Platform
Volume (rolling)
24H $127.6M -0.2%
7D $1.0B -9.6%
30D $5.9B -52.0%
Top Categories (24h)
1 📦 Misc $51.9M
2 ⚽ Sports $42.7M
3 ₿ Crypto $23.4M
Top Markets (24h)
1
LoL: Team WE vs ThunderTalk Gaming (BO3) - LPL Group Ascend
⚽ Sports $3.2M
2
LoL: BNK FEARX vs HANJIN BRION (BO3) - LCK Round 3-4 Rise Group
⚽ Sports $2.7M
3
Fed Decision in September?
📊 Economics $2.6M

Category Breakdown

Compare volume and activity across platforms by category

K

Kalshi Categories

CategoryMarketsVolumeChange
Politics13,225$3.0M+19.7%
Sports47,046$176.7M-36.1%
Crypto6,732$118.9M-27.3%
Economics4,369$1.6M-0.8%
Finance7,171$6.3M-17.9%
Tech2,890$114.2K+14.5%
Culture6,710$577.7K+1.8%
Weather1,933$1.0M-5.7%
Misc1,124$30.5K-84.1%
World212$115.1K+22%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics3,040$5.9M-17.9%
Sports10,924$42.7M+4.5%
Crypto5,445$23.4M+11.3%
Economics359$1.2M+348.4%
Finance379$305.4K+39.6%
Tech155$51.3K-46.8%
Culture259$125.0K-1.1%
Weather54$92.0K+93.9%
Misc126,361$51.9M-7.7%
Mentions7$6.2K+0.3%
K

Kalshi Categories

CategoryMarketsVolumeChange
Politics5,222$33.5M+114.2%
Sports71,675$2.0B-9.7%
Crypto21,610$1.1B+2.3%
Economics5,740$10.4M-55.4%
Finance14,988$34.0M+90.4%
Tech1,589$1.4M-47.1%
Culture3,170$4.3M-13%
Weather9,113$13.6M+31.1%
Misc975$583.3K-37.4%
World268$967.4K-3.2%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics2,518$57.8M-20.3%
Sports6,030$308.4M+4.9%
Crypto9,032$149.9M-12.7%
Economics311$3.6M-93.7%
Finance407$1.9M-62.3%
Tech133$367.5K+17.8%
Culture198$1.5M-15.3%
Weather63$436.2K+63.4%
Misc75,288$499.2M-5.7%
Mentions7$27.6K+159.9%
K

Kalshi Categories

CategoryMarketsVolumeChange
Politics10,028$91.9M+0.8%
Sports232,930$9.3B-16.9%
Crypto97,302$4.4B+47.2%
Economics17,984$61.4M+59.2%
Finance48,908$75.3M+180.9%
Tech2,538$7.2M+12.2%
Culture6,893$24.2M-29.3%
Weather36,107$52.6M+62.1%
Misc3,361$4.6M-87%
World514$3.3M-98.7%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics3,258$364.5M-46.3%
Sports15,547$1.6B-71.5%
Crypto64,799$939.6M-25.6%
Economics380$112.0M-24.7%
Finance696$12.9M-63.2%
Tech174$1.7M-87.1%
Culture319$7.0M-59.9%
Weather108$1.6M+51.2%
Misc222,281$2.9B-37.5%
Mentions17$59.0K-9%

Weekly volume analysis

1 / 1
Data

Kalshi Tops $7.5B With a Day Left, Smashing Its Own Weekly Volume Record

Kalshi has already surpassed $7.49 billion in notional volume for the week of June 15, surpassing its prior record of $6.38B with Sunday’s session still open. The partial total runs 17.5% above the previous record through just six closed days, putting Kalshi on track for its first $8B-plus week — a likely $8.5B to $8.9B […]

Volume Report

Kalshi Crosses $100B Milestone as World Cup Drives Daily Volume Over $1B

Kalshi crossed $100 billion in lifetime notional volume last week, and followed it up with its first-ever billion-dollar trading days on Saturday and Sunday. Kalshi’s notional volume total for the week of June 8 came in at $6.38 billion, up 43% from $4.46B the prior week, marking yet another weekly volume record by a wide […]

Volume Report

Kalshi Sets $17.9B Record May as World Cup Lifts Polymarket US to Weekly High

Kalshi closed May with $17.91 billion in notional volume, its ninth consecutive monthly record and a 21% jump from April’s then-record $14.81B, according to DeFi Rate’s prediction markets volume tracker. Polymarket posted $7.08 billion in the same month, representing a 21% decline from its $10.57B March peak and its lowest monthly total since January. The […]

Volume Report

Forecast: World Cup Prediction Market Volume Could Hit $2.5 Billion in the US

Prediction markets could drive as much as $2.5 billion in trading activity on the 2026 World Cup, with $1.47-1.93 billion trading on Kalshi. The current World Cup Winner contract is trending higher than March Madness and will likely reach ~$253 million in volume by the end of the tournament.

Top Markets by Volume

Highest trading activity across platforms

1
Who will win in the upcoming baseball event Detroit Tigers vs San Francisco Giants scheduled for August 8, 2026 at 2:15 AM UTC?
Polymarket US ⚾ Sports
Detroit Tigers 57%
$4.1M
Aug 7
Closed
1

Who will win in the upcoming baseball event Detroit Tigers vs San Francisco Giants scheduled for August 8, 2026 at 2:15 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $4.1M
2
Van de Zandschulp vs Hurkacz
Kalshi 🎾 Sports
Botic Van de Zandschulp Outcome
$3.9M
Aug 7
Closed
2

Van de Zandschulp vs Hurkacz

Kalshi
🎾 Sports Closed
Outcome Botic Van de Zandschulp
Volume $3.9M
3
Joint vs Samsonova
Kalshi 🎾 Sports
Liudmila Samsonova Outcome
$3.8M
Aug 7
Closed
3

Joint vs Samsonova

Kalshi
🎾 Sports Closed
Outcome Liudmila Samsonova
Volume $3.8M
4
Andreeva vs Fernandez
Kalshi 🎾 Sports
Leylah Fernandez Outcome
$3.4M
Aug 7
Closed
4

Andreeva vs Fernandez

Kalshi
🎾 Sports Closed
Outcome Leylah Fernandez
Volume $3.4M
5
Griekspoor vs Arnaldi
Kalshi 🎾 Sports
Tallon Griekspoor Outcome
$3.3M
Aug 7
Closed
5

Griekspoor vs Arnaldi

Kalshi
🎾 Sports Closed
Outcome Tallon Griekspoor
Volume $3.3M
6
Townsend vs Bencic
Kalshi 🎾 Sports
Taylor Townsend 61%
$3.2M
$2.0M
Aug 20
Active
6

Townsend vs Bencic

Kalshi
🎾 Sports Active
Taylor Townsend 61%
Belinda Bencic 39%
Volume
$3.2M
Open Int.
$2.0M
Ends
Aug 20
7
LoL: Team WE vs ThunderTalk Gaming (BO3) - LPL Group Ascend
Polymarket ⚽ Sports
ThunderTalk Gaming Outcome
$3.2M
Aug 7
Closed
7

LoL: Team WE vs ThunderTalk Gaming (BO3) - LPL Group Ascend

Polymarket
⚽ Sports Closed
Outcome ThunderTalk Gaming
Volume $3.2M
8
LoL: BNK FEARX vs HANJIN BRION (BO3) - LCK Round 3-4 Rise Group
Polymarket ⚽ Sports
HANJIN BRION Outcome
$2.7M
Aug 7
Closed
8

LoL: BNK FEARX vs HANJIN BRION (BO3) - LCK Round 3-4 Rise Group

Polymarket
⚽ Sports Closed
Outcome HANJIN BRION
Volume $2.7M
9
Ruud vs Fonseca
Kalshi 🎾 Sports
Joao Fonseca Outcome
$2.7M
Aug 6
Closed
9

Ruud vs Fonseca

Kalshi
🎾 Sports Closed
Outcome Joao Fonseca
Volume $2.7M
10
Fed Decision in September?
Polymarket 📊 Economics
Will there be no change in Fed interest rates after the September 2026 meeting 63%
$2.6M
$24.5K
Sep 15
Active
10

Fed Decision in September?

Polymarket
📊 Economics Active
Will there be no change in Fed interest rates after the September 2026 meeting 63%
Will the Fed increase interest rates by 25 bps after the September 2026 meeting 37%
Will the Fed decrease interest rates by 25 bps after the September 2026 meeting 2%
Will the Fed decrease interest rates by 50+ bps after the September 2026 meeting 1%
Will the Fed increase interest rates by 50+ bps after the September 2026 meeting 1%
Volume
$2.6M
Open Int.
$24.5K
Ends
Sep 15
11
Wang vs Zhang
Kalshi 🎾 Sports
Junhan Zhang Outcome
$2.6M
Aug 7
Closed
11

Wang vs Zhang

Kalshi
🎾 Sports Closed
Outcome Junhan Zhang
Volume $2.6M
12
Merida vs Michelsen
Kalshi 🎾 Sports
Daniel Merida Outcome
$2.4M
Aug 7
Closed
12

Merida vs Michelsen

Kalshi
🎾 Sports Closed
Outcome Daniel Merida
Volume $2.4M
13
McNally vs Eala
Kalshi 🎾 Sports
Alexandra Eala 77%
$2.2M
$1.2M
Aug 21
Active
13

McNally vs Eala

Kalshi
🎾 Sports Active
Alexandra Eala 77%
Caty McNally 22%
Volume
$2.2M
Open Int.
$1.2M
Ends
Aug 21
14
Johnson vs Martin
Kalshi 🎾 Sports
Spencer Johnson Outcome
$2.0M
Aug 7
Closed
14

Johnson vs Martin

Kalshi
🎾 Sports Closed
Outcome Spencer Johnson
Volume $2.0M
15
Tien vs Paul
Kalshi 🎾 Sports
Learner Tien 76%
$1.9M
$1.2M
Aug 21
Active
15

Tien vs Paul

Kalshi
🎾 Sports Active
Learner Tien 76%
Tommy Paul 27%
Volume
$1.9M
Open Int.
$1.2M
Ends
Aug 21
16
Jovic vs Korneeva
Kalshi 🎾 Sports
Alina Korneeva Outcome
$1.8M
Aug 6
Closed
16

Jovic vs Korneeva

Kalshi
🎾 Sports Closed
Outcome Alina Korneeva
Volume $1.8M
17
Sakamoto vs Butvilas
Kalshi 🎾 Sports
Edas Butvilas Outcome
$1.8M
Aug 7
Closed
17

Sakamoto vs Butvilas

Kalshi
🎾 Sports Closed
Outcome Edas Butvilas
Volume $1.8M
18
BTC 15 min · $64,941.71 target
Kalshi ₿ Crypto
No 100%
$1.8M
Aug 7
Closed
18

BTC 15 min · $64,941.71 target

Kalshi
₿ Crypto Closed
Outcome
Volume $1.8M
19
BTC 15 min · $64,250.53 target
Kalshi ₿ Crypto
No 100%
$1.7M
Aug 6
Closed
19

BTC 15 min · $64,250.53 target

Kalshi
₿ Crypto Closed
Outcome
Volume $1.7M
20
New York M vs Pittsburgh
Kalshi ⚾ Sports
New York Mets 97%
$1.6M
$1.8M
Aug 10
Closing Soon
20

New York M vs Pittsburgh

Kalshi
⚾ Sports Closing Soon
New York Mets 97%
Pittsburgh Pirates 4%
Volume
$1.6M
Open Int.
$1.8M
Ends
Aug 10
21
Minnesota vs Milwaukee
Kalshi ⚾ Sports
Minnesota Twins 84%
$1.6M
$1.5M
Aug 10
Closing Soon
21

Minnesota vs Milwaukee

Kalshi
⚾ Sports Closing Soon
Minnesota Twins 84%
Milwaukee Brewers 17%
Volume
$1.6M
Open Int.
$1.5M
Ends
Aug 10
22
Matsuda vs Brouwer
Kalshi 🎾 Sports
Gijs Brouwer Outcome
$1.6M
Aug 7
Closed
22

Matsuda vs Brouwer

Kalshi
🎾 Sports Closed
Outcome Gijs Brouwer
Volume $1.6M
23
Li vs Rybakina
Kalshi 🎾 Sports
Elena Rybakina Outcome
$1.6M
Aug 6
Closed
23

Li vs Rybakina

Kalshi
🎾 Sports Closed
Outcome Elena Rybakina
Volume $1.6M
24
LoL: KT Rolster vs Gen.G (BO3) - LCK Round 3-4 Legend Group
Polymarket ⚽ Sports
Gen.G Outcome
$1.6M
Aug 7
Closed
24

LoL: KT Rolster vs Gen.G (BO3) - LCK Round 3-4 Legend Group

Polymarket
⚽ Sports Closed
Outcome Gen.G
Volume $1.6M
25
Atmane vs Mensik
Kalshi 🎾 Sports
Jakub Mensik Outcome
$1.6M
Aug 7
Closed
25

Atmane vs Mensik

Kalshi
🎾 Sports Closed
Outcome Jakub Mensik
Volume $1.6M
26
Atlanta vs Washington
Kalshi 🏀 Sports
Washington Mystics Outcome
$1.6M
Aug 7
Closed
26

Atlanta vs Washington

Kalshi
🏀 Sports Closed
Outcome Washington Mystics
Volume $1.6M
27
BTC 15 min · $64,197.91 target
Kalshi ₿ Crypto
No 100%
$1.5M
Aug 6
Closed
27

BTC 15 min · $64,197.91 target

Kalshi
₿ Crypto Closed
Outcome
Volume $1.5M
28
Shek vs Jang
Kalshi 🎾 Sports
Gaeul Jang Outcome
$1.5M
Aug 7
Closed
28

Shek vs Jang

Kalshi
🎾 Sports Closed
Outcome Gaeul Jang
Volume $1.5M
29
Toronto vs Philadelphia
Kalshi ⚾ Sports
Philadelphia 53%
$1.5M
$1.5M
Aug 10
Closing Soon
29

Toronto vs Philadelphia

Kalshi
⚾ Sports Closing Soon
Philadelphia 53%
Toronto 49%
Volume
$1.5M
Open Int.
$1.5M
Ends
Aug 10
30
LoL: Team Heretics vs Fnatic (BO3) - LEC Regular Season
Polymarket ⚽ Sports
Team Heretics Outcome
$1.5M
Aug 7
Closed
30

LoL: Team Heretics vs Fnatic (BO3) - LEC Regular Season

Polymarket
⚽ Sports Closed
Outcome Team Heretics
Volume $1.5M
1
Jessica Pegula vs. Alexandra Eala
Polymarket US 🎾 Sports
Alexandra Eala Outcome
$14.4M
$435.8K
Aug 3
Closed
1

Jessica Pegula vs. Alexandra Eala

Polymarket US
🎾 Sports Closed
Outcome Alexandra Eala
Volume $14.4M
2
Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 5, 2026 at 6:20 PM UTC?
Polymarket US ⚾ Sports
Chicago Cubs Outcome
$11.7M
$203.1K
Aug 5
Closed
2

Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 5, 2026 at 6:20 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Chicago Cubs
Volume $11.7M
3
Who will win in the upcoming baseball event Toronto Blue Jays vs Houston Astros scheduled for August 5, 2026 at 6:10 PM UTC?
Polymarket US ⚾ Sports
Toronto Blue Jays Outcome
$11.2M
$186.2K
Aug 5
Closed
3

Who will win in the upcoming baseball event Toronto Blue Jays vs Houston Astros scheduled for August 5, 2026 at 6:10 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Toronto Blue Jays
Volume $11.2M
4
Wyndham Championship Winner
Kalshi ⛳ Sports
Beau Hossler 15%
$10.8M
$53.8M
Aug 22
Active
4

Wyndham Championship Winner

Kalshi
⛳ Sports Active
Beau Hossler 15%
Benjamin James 13%
Jordan L. Smith 13%
Alex Smalley 5%
Doug Ghim 5%
Tom Kim 4%
Sahith Theegala 4%
Michael Brennan 4%
Alex Noren 4%
Davis Thompson 3%
Billy Horschel 3%
Max Greyserman 3%
Rico Hoey 3%
Brooks Koepka 2%
Hideki Matsuyama 2%
Denny McCarthy 2%
Eric Cole 2%
Jackson Suber 2%
Matti Schmid 2%
Cameron Young 1%
Jackson Koivun 1%
Ben Kohles 1%
Peter Malnati 1%
Aaron Rai 1%
Rasmus Højgaard 1%
Alex Fitzpatrick 1%
Justin Thomas 1%
Jordan Spieth 1%
Chandler Phillips 1%
Davis Chatfield 1%
Michael Kim 1%
Chris Kirk 1%
John Parry 1%
Kevin Yu 1%
Rafael Campos 1%
Mackenzie Hughes 1%
Joel Dahmen 1%
Sungjae Im 1%
Hayden Springer 1%
Christiaan Bezuidenhout 1%
Trace Crowe 1%
Joe Highsmith 1%
Austin Eckroat 1%
Marco Penge 1%
Tom Hoge 1%
Keith Mitchell 1%
Nicolas Echavarria 1%
Brandt Snedeker 1%
Zachary Bauchou 1%
Bud Cauley 1%
Tyler Collet 1%
Kris Ventura 1%
Lee Hodges 1%
Keegan Bradley 1%
Austin Smotherman 1%
Tony Finau 1%
Taylor Pendrith 1%
Maverick McNealy 1%
Matthew McCarty 1%
Chad Ramey 1%
Webb Simpson 1%
Adrien Saddier 1%
Neal Shipley 1%
Danny Walker 1%
Patrick Fishburn 1%
Matt Wallace 1%
Andrew Novak 1%
Nick Taylor 1%
David Skinns 1%
Erik Van Rooyen 1%
Thorbjørn Olesen 1%
Andrew Putnam 1%
Kihei Akina 1%
Pontus Nyholm 1%
Harry Hall 1%
Patton Kizzire 1%
Ricky Castillo 1%
Kensei Hirata 1%
Kevin Roy 1%
Kevin Streelman 1%
Justin Lower 1%
Volume
$10.8M
Open Int.
$53.8M
Ends
Aug 22
5
Fed Decision in September?
Polymarket 📊 Economics
Will there be no change in Fed interest rates after the September 2026 meeting 63%
$9.0M
$24.5K
Sep 15
Active
5

Fed Decision in September?

Polymarket
📊 Economics Active
Will there be no change in Fed interest rates after the September 2026 meeting 63%
Will the Fed increase interest rates by 25 bps after the September 2026 meeting 37%
Will the Fed decrease interest rates by 25 bps after the September 2026 meeting 2%
Will the Fed decrease interest rates by 50+ bps after the September 2026 meeting 1%
Will the Fed increase interest rates by 50+ bps after the September 2026 meeting 1%
Volume
$9.0M
Open Int.
$24.5K
Ends
Sep 15
6
Strait of Hormuz traffic returns to normal by...?
Polymarket 🏛️ Politics
August 31 13%
$8.6M
$0
Aug 30
Active
6

Strait of Hormuz traffic returns to normal by...?

Polymarket
🏛️ Politics Active
August 31 13%
August 15 1%
Volume
$8.6M
Open Int.
$0
Ends
Aug 30
7
Who will win in the upcoming baseball event Philadelphia Phillies vs Baltimore Orioles scheduled for August 2, 2026 at 5:35 PM UTC?
Polymarket US ⚾ Sports
Philadelphia Phillies Outcome
$7.7M
$85.4K
Aug 2
Closed
7

Who will win in the upcoming baseball event Philadelphia Phillies vs Baltimore Orioles scheduled for August 2, 2026 at 5:35 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Philadelphia Phillies
Volume $7.7M
8
Wyndham Championship End of Round 1 Leader: Beau Hossler
Polymarket US ⛳ Sports
Beau Hossler 98%
$6.6M
Aug 7
Closed
8

Wyndham Championship End of Round 1 Leader: Beau Hossler

Polymarket US
⛳ Sports Closed
Outcome
Volume $6.6M
9
Who will win in the upcoming baseball event Milwaukee Brewers vs Los Angeles Angels scheduled for August 2, 2026 at 7:15 PM UTC?
Polymarket US ⚾ Sports
Los Angeles Angels Outcome
$6.6M
$55.3K
Aug 2
Closed
9

Who will win in the upcoming baseball event Milwaukee Brewers vs Los Angeles Angels scheduled for August 2, 2026 at 7:15 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Los Angeles Angels
Volume $6.6M
10
Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 5, 2026 at 12:05 AM UTC?
Polymarket US ⚾ Sports
Chicago Cubs Outcome
$6.4M
Aug 4
Closed
10

Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 5, 2026 at 12:05 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome Chicago Cubs
Volume $6.4M
11
Will the U.S. invade Iran before 2027?
Polymarket 🏛️ Politics
No 83%
$6.1M
$5.8M
Dec 30
Active
11

Will the U.S. invade Iran before 2027?

Polymarket
🏛️ Politics Active
Yes 17%
No 83%
Volume
$6.1M
Open Int.
$5.8M
Ends
Dec 30
12
Wyndham Championship End of Round 1 Leader: Benjamin James
Polymarket US ⛳ Sports
Benjamin James 1%
$5.9M
Aug 7
Closed
12

Wyndham Championship End of Round 1 Leader: Benjamin James

Polymarket US
⛳ Sports Closed
Outcome
Volume $5.9M
13
Who will win in the upcoming baseball event St. Louis Cardinals vs New York Yankees scheduled for August 3, 2026 at 11:05 PM UTC?
Polymarket US ⚾ Sports
St. Louis Cardinals Outcome
$5.5M
Aug 3
Closed
13

Who will win in the upcoming baseball event St. Louis Cardinals vs New York Yankees scheduled for August 3, 2026 at 11:05 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome St. Louis Cardinals
Volume $5.5M
14
Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 4, 2026 at 12:05 AM UTC?
Polymarket US ⚾ Sports
Chicago Cubs Outcome
$5.4M
Aug 3
Closed
14

Who will win in the upcoming baseball event Los Angeles Dodgers vs Chicago Cubs scheduled for August 4, 2026 at 12:05 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome Chicago Cubs
Volume $5.4M
15
What price will Bitcoin hit in July?
Polymarket ₿ Crypto
No Outcome
$5.3M
Jul 31
Closed
15

What price will Bitcoin hit in July?

Polymarket
₿ Crypto Closed
Outcome No
Volume $5.3M
16
Who will win in the upcoming baseball event Washington Nationals vs Philadelphia Phillies scheduled for August 3, 2026 at 10:40 PM UTC?
Polymarket US ⚾ Sports
Philadelphia Phillies Outcome
$5.2M
$86.9K
Aug 3
Closed
16

Who will win in the upcoming baseball event Washington Nationals vs Philadelphia Phillies scheduled for August 3, 2026 at 10:40 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Philadelphia Phillies
Volume $5.2M
17
Who will win in the upcoming baseball event Miami Marlins vs New York Mets scheduled for August 2, 2026 at 5:40 PM UTC?
Polymarket US ⚾ Sports
Miami Marlins Outcome
$5.1M
$76.7K
Aug 2
Closed
17

Who will win in the upcoming baseball event Miami Marlins vs New York Mets scheduled for August 2, 2026 at 5:40 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Miami Marlins
Volume $5.1M
18
Who will win in the upcoming baseball event Tampa Bay Rays vs Colorado Rockies scheduled for August 4, 2026 at 12:40 AM UTC?
Polymarket US ⚾ Sports
Tampa Bay Rays Outcome
$5.0M
Aug 3
Closed
18

Who will win in the upcoming baseball event Tampa Bay Rays vs Colorado Rockies scheduled for August 4, 2026 at 12:40 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome Tampa Bay Rays
Volume $5.0M
19
Who will win in the upcoming baseball event Detroit Tigers vs San Francisco Giants scheduled for August 8, 2026 at 2:15 AM UTC?
Polymarket US ⚾ Sports
Detroit Tigers 57%
$4.8M
Aug 7
Closed
19

Who will win in the upcoming baseball event Detroit Tigers vs San Francisco Giants scheduled for August 8, 2026 at 2:15 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $4.8M
20
LoL: ThunderTalk Gaming vs Team WE (BO3) - LPL Group Ascend
Polymarket ⚽ Sports
Team WE Outcome
$4.6M
Aug 2
Closed
20

LoL: ThunderTalk Gaming vs Team WE (BO3) - LPL Group Ascend

Polymarket
⚽ Sports Closed
Outcome Team WE
Volume $4.6M
21
Dota 2: Team Falcons vs Team Liquid (BO5) - 1win Essence Playoffs
Polymarket ⚽ Sports
Team Liquid Outcome
$4.3M
Aug 5
Closed
21

Dota 2: Team Falcons vs Team Liquid (BO5) - 1win Essence Playoffs

Polymarket
⚽ Sports Closed
Outcome Team Liquid
Volume $4.3M
22
Counter-Strike: Spirit vs MOUZ (BO5) - BLAST Bounty Playoffs
Polymarket ⚽ Sports
MOUZ Outcome
$4.2M
Aug 2
Closed
22

Counter-Strike: Spirit vs MOUZ (BO5) - BLAST Bounty Playoffs

Polymarket
⚽ Sports Closed
Outcome MOUZ
Volume $4.2M
23
Republican Presidential Nominee 2028
Polymarket 🏛️ Politics
J.D. Vance 43%
$4.1M
$9.3M
Nov 6
Active
23

Republican Presidential Nominee 2028

Polymarket
🏛️ Politics Active
J.D. Vance 43%
Marco Rubio 23%
Tucker Carlson 3%
Ron DeSantis 3%
Donald Trump 2%
Brian Kemp 1%
Mike Pence 1%
Kim Kardashian 1%
Elon Musk 1%
Vivek Ramaswamy 1%
Donald Trump Jr. 1%
Matt Gaetz 1%
Rand Paul 1%
Kristi Noem 1%
Thomas Massie 1%
Tom Brady 1%
Erika Kirk 1%
John Thune 1%
Byron Donalds 1%
Ivanka Trump 1%
Steve Bannon 1%
Tulsi Gabbard 1%
Elise Stefanik 1%
Sarah Huckabee Sanders 1%
Katie Britt 1%
Marjorie Taylor Greene 1%
Robert F. Kennedy Jr. 1%
Greg Abbott 1%
Glenn Youngkin 1%
Ted Cruz 1%
Nikki Haley 1%
Josh Hawley 1%
Joe Kent 1%
Eric Trump 1%
Pete Hegseth 1%
Tom Cotton 1%
Candace Owens 1%
Mike Johnson 1%
Rick Scott 1%
Doug Burgum 1%
Tim Scott 1%
John N. Kennedy 1%
Volume
$4.1M
Open Int.
$9.3M
Ends
Nov 6
24
Who will win in the upcoming baseball event San Francisco Giants vs Texas Rangers scheduled for August 4, 2026 at 12:05 AM UTC?
Polymarket US ⚾ Sports
San Francisco Giants Outcome
$3.9M
Aug 3
Closed
24

Who will win in the upcoming baseball event San Francisco Giants vs Texas Rangers scheduled for August 4, 2026 at 12:05 AM UTC?

Polymarket US
⚾ Sports Closed
Outcome San Francisco Giants
Volume $3.9M
25
LoL: HANJIN BRION vs Nongshim Red Force (BO3) - LCK Round 3-4 Rise Group
Polymarket ⚽ Sports
HANJIN BRION Outcome
$3.9M
Aug 5
Closed
25

LoL: HANJIN BRION vs Nongshim Red Force (BO3) - LCK Round 3-4 Rise Group

Polymarket
⚽ Sports Closed
Outcome HANJIN BRION
Volume $3.9M
26
Who will win in the upcoming mma event Mateusz Rebecki vs Kyle Prepolec scheduled for August 1, 2026 at 2:00 PM UTC?
Polymarket US 🥊 Sports
Mateusz Rebecki Outcome
$3.8M
$28.2K
Aug 1
Closed
26

Who will win in the upcoming mma event Mateusz Rebecki vs Kyle Prepolec scheduled for August 1, 2026 at 2:00 PM UTC?

Polymarket US
🥊 Sports Closed
Outcome Mateusz Rebecki
Volume $3.8M
27
Brazil Presidential Election
Polymarket 🏛️ Politics
Luiz Inácio Lula da Silva 65%
$3.7M
$2.9M
Oct 3
Active
27

Brazil Presidential Election

Polymarket
🏛️ Politics Active
Luiz Inácio Lula da Silva 65%
Flávio Bolsonaro 27%
Renan Santos 8%
Tarcisio de Freitas 1%
Jair Bolsonaro 1%
Fernando Haddad 1%
Romeu Zema 1%
Carlos Roberto Massa Júnior 1%
Michelle Bolsonaro 1%
Eduardo Bolsonaro 1%
Camilo Santana 1%
Aldo Rebelo 1%
Eduardo Leite 1%
Ronaldo Caiado 1%
Geraldo Alckmin 1%
Helder Barbalho 1%
Tereza Cristina 1%
Volume
$3.7M
Open Int.
$2.9M
Ends
Oct 3
28
Who will win in the upcoming baseball event Los Angeles Angels vs Baltimore Orioles scheduled for August 6, 2026 at 4:35 PM UTC?
Polymarket US ⚾ Sports
Los Angeles Angels Outcome
$3.5M
$82.3K
Aug 6
Closed
28

Who will win in the upcoming baseball event Los Angeles Angels vs Baltimore Orioles scheduled for August 6, 2026 at 4:35 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Los Angeles Angels
Volume $3.5M
29
LoL: KT Rolster vs Hanwha Life Esports (BO3) - LCK Round 3-4 Legend Group
Polymarket ⚽ Sports
KT Rolster Outcome
$3.4M
Aug 2
Closed
29

LoL: KT Rolster vs Hanwha Life Esports (BO3) - LCK Round 3-4 Legend Group

Polymarket
⚽ Sports Closed
Outcome KT Rolster
Volume $3.4M
30
Who will win in the upcoming baseball event Chicago White Sox vs Boston Red Sox scheduled for August 5, 2026 at 11:10 PM UTC?
Polymarket US ⚾ Sports
Boston Red Sox Outcome
$3.4M
$63.7K
Aug 5
Closed
30

Who will win in the upcoming baseball event Chicago White Sox vs Boston Red Sox scheduled for August 5, 2026 at 11:10 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Boston Red Sox
Volume $3.4M
1
Which team will advance from France vs Spain on 2026-07-14 3:00PM ET?
Polymarket US ⚽ Sports
Spain Outcome
$199.4M
$4.1M
Jul 14
Closed
1

Which team will advance from France vs Spain on 2026-07-14 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Spain
Volume $199.4M
2
Which team will advance from Spain vs Argentina on 2026-07-19 3:00PM ET?
Polymarket US ⚽ Sports
Spain Outcome
$186.3M
$5.7M
Jul 19
Closed
2

Which team will advance from Spain vs Argentina on 2026-07-19 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Spain
Volume $186.3M
3
Which team will advance from England vs Argentina on 2026-07-15 3:00PM ET?
Polymarket US ⚽ Sports
Argentina Outcome
$161.5M
$3.3M
Jul 15
Closed
3

Which team will advance from England vs Argentina on 2026-07-15 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Argentina
Volume $161.5M
4
Fed Decision in July?
Polymarket 📊 Economics
No Outcome
$110.0M
Jul 28
Closed
4

Fed Decision in July?

Polymarket
📊 Economics Closed
Outcome No
Volume $110.0M
5
Which team will advance from Spain vs Belgium on 2026-07-10 3:00PM ET?
Polymarket US ⚽ Sports
Spain Outcome
$105.0M
$1.9M
Jul 10
Closed
5

Which team will advance from Spain vs Belgium on 2026-07-10 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Spain
Volume $105.0M
6
France vs. Spain - More Markets
Polymarket ⚽ Sports
Spain Outcome
$76.3M
Jul 14
Closed
6

France vs. Spain - More Markets

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $76.3M
7
Which team will advance from Norway vs England on 2026-07-11 5:00PM ET?
Polymarket US ⚽ Sports
England Outcome
$64.1M
$2.9M
Jul 11
Closed
7

Which team will advance from Norway vs England on 2026-07-11 5:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome England
Volume $64.1M
8
England vs. Argentina - More Markets
Polymarket ⚽ Sports
Argentina Outcome
$59.0M
Jul 15
Closed
8

England vs. Argentina - More Markets

Polymarket
⚽ Sports Closed
Outcome Argentina
Volume $59.0M
9
Which team will advance from France vs Morocco on 2026-07-09 4:00PM ET?
Polymarket US ⚽ Sports
France Outcome
$57.2M
$1.4M
Jul 9
Closed
9

Which team will advance from France vs Morocco on 2026-07-09 4:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome France
Volume $57.2M
10
Yosuke Watanuki vs. Andre Ilagan
Polymarket US 🎾 Sports
Yosuke Watanuki Outcome
$53.1M
$117.8K
Jul 21
Closed
10

Yosuke Watanuki vs. Andre Ilagan

Polymarket US
🎾 Sports Closed
Outcome Yosuke Watanuki
Volume $53.1M
11
France vs. Spain
Polymarket ⚽ Sports
Spain Outcome
$51.3M
Jul 14
Closed
11

France vs. Spain

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $51.3M
12
Who will win in the upcoming baseball event Baltimore Orioles vs Boston Red Sox scheduled for July 21, 2026 at 11:10 PM UTC?
Polymarket US ⚾ Sports
Boston Red Sox Outcome
$50.5M
$723.3K
Jul 22
Closed
12

Who will win in the upcoming baseball event Baltimore Orioles vs Boston Red Sox scheduled for July 21, 2026 at 11:10 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Boston Red Sox
Volume $50.5M
13
Which team will advance from Argentina vs Switzerland on 2026-07-11 9:00PM ET?
Polymarket US ⚽ Sports
Argentina Outcome
$49.2M
Jul 11
Closed
13

Which team will advance from Argentina vs Switzerland on 2026-07-11 9:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Argentina
Volume $49.2M
14
France vs. Morocco - More Markets
Polymarket ⚽ Sports
Under Outcome
$45.8M
Jul 9
Closed
14

France vs. Morocco - More Markets

Polymarket
⚽ Sports Closed
Outcome Under
Volume $45.8M
15
Will both teams score in the match between Spain and Argentina on 2026-07-19 3:00PM ET?
Polymarket US ⚽ Sports
No Outcome
$40.6M
$1.2M
Jul 19
Closed
15

Will both teams score in the match between Spain and Argentina on 2026-07-19 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome No
Volume $40.6M
16
Jannik Sinner vs. Alexander Zverev
Polymarket US 🎾 Sports
Jannik Sinner Outcome
$40.3M
$366.7K
Jul 12
Closed
16

Jannik Sinner vs. Alexander Zverev

Polymarket US
🎾 Sports Closed
Outcome Jannik Sinner
Volume $40.3M
17
Will both teams score in the match between England and Argentina on 2026-07-15 3:00PM ET?
Polymarket US ⚽ Sports
Yes Outcome
$38.4M
$1.0M
Jul 15
Closed
17

Will both teams score in the match between England and Argentina on 2026-07-15 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Yes
Volume $38.4M
18
Spain vs. Belgium - More Markets
Polymarket ⚽ Sports
Spain Outcome
$36.0M
Jul 10
Closed
18

Spain vs. Belgium - More Markets

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $36.0M
19
Which team will advance from France vs England on 2026-07-18 5:00PM ET?
Polymarket US ⚽ Sports
England Outcome
$33.8M
$1.5M
Jul 18
Closed
19

Which team will advance from France vs England on 2026-07-18 5:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome England
Volume $33.8M
20
Will both teams score in the match between France and Spain on 2026-07-14 3:00PM ET?
Polymarket US ⚽ Sports
No Outcome
$33.4M
$871.5K
Jul 14
Closed
20

Will both teams score in the match between France and Spain on 2026-07-14 3:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome No
Volume $33.4M
21
Spain vs. Belgium
Polymarket ⚽ Sports
Spain Outcome
$33.3M
Jul 10
Closed
21

Spain vs. Belgium

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $33.3M
22
Will both teams score in the match between Norway and England on 2026-07-11 5:00PM ET?
Polymarket US ⚽ Sports
Yes Outcome
$31.8M
$568.1K
Jul 11
Closed
22

Will both teams score in the match between Norway and England on 2026-07-11 5:00PM ET?

Polymarket US
⚽ Sports Closed
Outcome Yes
Volume $31.8M
23
England vs. Argentina
Polymarket ⚽ Sports
Argentina Outcome
$31.5M
Jul 15
Closed
23

England vs. Argentina

Polymarket
⚽ Sports Closed
Outcome Argentina
Volume $31.5M
24
England vs. Argentina - Exact Score
Polymarket ⚽ Sports
Exact Score: England 1 - 2 Argentina Outcome
$30.2M
Jul 15
Closed
24

England vs. Argentina - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: England 1 - 2 Argentina
Volume $30.2M
25
Rio Noguchi vs. Braden Shick
Polymarket US 🎾 Sports
Rio Noguchi Outcome
$29.1M
$71.8K
Jul 21
Closed
25

Rio Noguchi vs. Braden Shick

Polymarket US
🎾 Sports Closed
Outcome Rio Noguchi
Volume $29.1M
26
Norway vs. England - More Markets
Polymarket ⚽ Sports
England Outcome
$28.6M
Jul 11
Closed
26

Norway vs. England - More Markets

Polymarket
⚽ Sports Closed
Outcome England
Volume $28.6M
27
France vs. Spain - Exact Score
Polymarket ⚽ Sports
Exact Score: France 0 - 2 Spain Outcome
$28.4M
Jul 14
Closed
27

France vs. Spain - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: France 0 - 2 Spain
Volume $28.4M
28
Presidential Election Winner 2028
Polymarket 🏛️ Politics
JD Vance 21%
$27.6M
$37.7M
Nov 6
Active
28

Presidential Election Winner 2028

Polymarket
🏛️ Politics Active
JD Vance 21%
Marco Rubio 13%
Gavin Newsom 10%
Alexandria Ocasio-Cortez 10%
Jon Ossoff 10%
Kamala Harris 4%
Josh Shapiro 3%
Dwayne 'The Rock' Johnson 2%
Donald Trump 2%
Tucker Carlson 2%
Thomas Massie 2%
Pete Buttigieg 2%
Ron DeSantis 2%
Andy Beshear 2%
LeBron James 1%
Kim Kardashian 1%
Gretchen Whitmer 1%
Elon Musk 1%
Tim Walz 1%
Ivanka Trump 1%
Stephen Smith 1%
Nikki Haley 1%
Zohran Mamdani 1%
JB Pritzker 1%
Eric Trump 1%
Jamie Dimon 1%
Greg Abbott 1%
Vivek Ramaswamy 1%
Michelle Obama 1%
Tulsi Gabbard 1%
Glenn Youngkin 1%
Donald Trump Jr. 1%
Wes Moore 1%
Pete Hegseth 1%
James Talarico 1%
Ro Khanna 1%
Jalen Brunson 1%
Adam Schiff 1%
Josh Stein 1%
Alex Padilla 1%
Candace Owens 1%
Elissa Slotkin 1%
John N. Kennedy 1%
Tim Scott 1%
Mike Johnson 1%
Abigail Spanberger 1%
Rick Scott 1%
Doug Burgum 1%
Tom Cotton 1%
Hakeem Jeffries 1%
Volume
$27.6M
Open Int.
$37.7M
Ends
Nov 6
29
Will Trump be in the WC Champions Photo?
Polymarket 🏛️ Politics
Trump Outcome
$26.6M
Jul 19
Closed
29

Will Trump be in the WC Champions Photo?

Polymarket
🏛️ Politics Closed
Outcome Trump
Volume $26.6M
30
Spain vs. Argentina - Exact Score
Polymarket ⚽ Sports
Exact Score: Spain 0 - 0 Argentina Outcome
$26.2M
Jul 19
Closed
30

Spain vs. Argentina - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: Spain 0 - 0 Argentina
Volume $26.2M

How we collect data

DeFi Rate pulls prediction market data directly from platform APIs on a rolling basis. Kalshi data is sourced from the Kalshi REST API, which provides market-level contract data including volume, open interest, resolution status, and native category classifications. Polymarket data is sourced from the Polymarket GraphQL API, which exposes market-level trading activity, liquidity, and outcome probabilities across its decentralized order book. We also support ForecastX, Gemini and Polymarket US, though the data provided is limited in scope compared to Kalshi and Polymarket (international)

Data is fetched at 30-minute intervals, cleaned and stored on our end. All figures reflect each platform’s public API at the time of the most recent refresh.

Volume methodology

All volume figures are calculated on a rolling window basis, not calendar periods. A 24-hour rolling window captures all trades recorded in the 24 hours preceding each data pull. A 7-day window covers the trailing 7 days; a 30-day window covers the trailing 30 days. Figures update continuously and will differ from calendar-period totals (e.g., “volume this month”) published elsewhere.

Volume is denominated in USD. Kalshi reports native USD figures. Polymarket volume is denominated in USDC and converted to USD at a 1:1 rate, consistent with USDC’s peg.

Category taxonomy

Kalshi categories reflect the platform’s native classification system as returned by the Kalshi API. Polymarket does not enforce a rigid native taxonomy; categories displayed for Polymarket markets are assigned by DeFi Rate using a standardized classification schema mapped against market title and tag data. The schema assigns each market to one of the following categories: Politics, Sports, Crypto, Economics, Finance, Tech, Culture, Weather, Misc, and World. Markets carrying Polymarket’s native “mentions” tag are classified separately as Mentions. Category assignments are reviewed periodically and updated when platform tagging changes.

Leading outcome

The Leading column in the Top Markets table displays the current frontrunner for each market. For binary markets, this is the outcome trading above 50% implied probability. For multi-outcome markets, it is the outcome with the highest current implied probability. The probability figure shown reflects the last traded price for that contract. “Outcome” in place of a probability indicates the market has resolved and the displayed entry is the confirmed result.

Status definitions

Active markets are open for trading at the time of the data pull. Closed markets have passed their end date or been resolved by the platform. DeFi Rate does not distinguish between platform-level “expired” and “settled” statuses in the display layer; both appear as Closed.

Polymarket US top 30 markets

The Polymarket US Top 30 tab filters to markets accessible to US-based traders under Polymarket’s geofenced access rules. Polymarket restricts certain political and financial markets from US IP addresses; this view reflects the subset of the Polymarket top 30 reachable from a US connection at the time of the data pull. Availability is determined by Polymarket’s own access-control layer and may change without notice.

Change percentage

The change figure displayed alongside each volume metric is the percentage difference between the current rolling window and the equivalent prior period. For a 30-day reading, the comparison window is days 31–60 immediately preceding the current window. A positive value indicates higher volume in the most recent window; a negative value indicates lower volume. Change figures apply at the platform level, category level, and individual market level depending on context.

Market count figure

The Markets figure in the Category Breakdown table reflects the total number of discrete contracts within each category, not the number of parent events. On Kalshi, a single event (e.g., “NBA Champion 2026”) may contain multiple contracts — one per team — and each is counted separately. On Polymarket, each market URL corresponds to a single binary outcome and is counted as one market. Kalshi market counts are therefore not directly comparable to Polymarket market counts at the category level, though this is often used in the media.

Open interest

Open interest reflects the total value of unsettled contracts currently held by traders on a given market. It is pulled directly from each platform’s API and represents outstanding exposure at the time of the data pull, not cumulative traded volume. A dash (—) in the Open Int. column indicates the field was not returned in the API response for that market.