Prediction Market Volume: Kalshi & Polymarket Aggregated Data

Live Data
Weekly Notional Volume Total USD value of contracts traded during the last complete calendar week.
$8.7B
K Kalshi
$7.0B (81%)
P Polymarket
$1.6B (19%)
U Polymarket US
$5.9M (0%)
Active Markets Number of prediction markets currently open for trading on each platform.
223,840
K Kalshi
75,227 (34%)
P Polymarket
138,613 (62%)
U Polymarket US
10,000 (4%)
Weekly Transactions Total number of trades executed during the last complete calendar week.
64,966,061
K Kalshi
49,396,396 (76%)
P Polymarket
15,569,665 (24%)
U Polymarket US
— (—)
Open Interest Total USD value of unsettled contracts currently held by traders.
$1.2B
K Kalshi
$729.0M (59%)
P Polymarket
$496.1M (40%)
U Polymarket US
$17.4M (1%)
Last updated: August 9, 2026 at 7:42 PM PDT

Kalshi
CFTC Regulated
Volume (rolling)
24H $455.0M -2.3%
7D $3.3B -3.0%
30D $14.3B -3.6%
Top Categories (24h)
1 ⚽ Sports $228.3M
2 ₿ Crypto $99.9M
3 🏛️ Politics $2.4M
Top Markets (24h)
1
Sabalenka vs Alexandrova
🎾 Sports $5.6M
2
Los Angeles D vs Arizona
⚾ Sports $5.5M
3
Samsonova vs Rybakina
🎾 Sports $5.2M
Polymarket
Decentralized Platform
Volume (rolling)
24H $150.7M +9.6%
7D $995.8M -13.9%
30D $5.8B -53.4%
Top Categories (24h)
1 📦 Misc $64.0M
2 ⚽ Sports $34.7M
3 ₿ Crypto $16.8M
Top Markets (24h)
1
LoL: BNK FEARX vs Kiwoom DRX (BO3) - LCK Round 3-4 Rise Group
⚽ Sports $2.0M
2
LoL: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 Legend Group
⚽ Sports $1.8M
3
Dota 2: Amaru Gaming vs Team Jenz (BO3) - EPL Masters Group A
⚽ Sports $1.6M

Category Breakdown

Compare volume and activity across platforms by category

K

Kalshi Categories

CategoryMarketsVolumeChange
Politics13,077$2.4M-31.5%
Sports47,863$228.3M+8.7%
Crypto4,617$99.9M-14.9%
Economics3,990$538.9K-67.7%
Finance4,937$126.7K-90.7%
Tech2,866$110.2K-46.6%
Culture6,533$368.2K-36.2%
Weather1,962$1.2M-5.8%
Misc1,281$849.4K+137.4%
World199$78.3K-45.4%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics3,032$5.1M-19%
Sports11,417$34.7M-2.1%
Crypto5,326$16.8M-18.6%
Economics356$89.6K-91.4%
Finance375$94.3K-64.8%
Tech156$22.2K-48.9%
Culture254$186.0K+55.5%
Weather51$42.1K-63.2%
Misc135,037$64.0M+41.3%
Mentions4$0+42.2%
K

Kalshi Categories

CategoryMarketsVolumeChange
Politics5,228$33.7M+118.9%
Sports76,708$2.0B-9.2%
Crypto21,084$1.2B+7.3%
Economics5,783$10.1M-56.3%
Finance15,766$35.0M+95.1%
Tech1,473$1.2M-56.3%
Culture3,134$4.2M-9.1%
Weather9,357$13.5M+26.7%
Misc959$667.2K-5.6%
World266$926.5K-5.8%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics2,511$54.0M-26.8%
Sports6,544$299.2M-1.2%
Crypto10,749$160.7M-6.2%
Economics308$3.4M-93.8%
Finance422$1.9M-63.3%
Tech128$346.4K+8.2%
Culture185$1.4M-22.1%
Weather59$397.2K+19.4%
Misc83,715$474.6M-13.2%
Mentions7$35.9K+642.2%
K

Kalshi Categories

CategoryMarketsVolumeChange
Politics10,098$92.0M+5.9%
Sports240,399$9.4B-16%
Crypto98,861$4.5B+48.6%
Economics17,905$60.5M+60.1%
Finance49,051$75.5M+188.5%
Tech2,557$7.2M+12.6%
Culture6,830$23.5M-32.2%
Weather36,715$53.0M+66.3%
Misc3,345$4.9M-85.7%
World531$3.3M-98.7%
P

Polymarket Categories

CategoryMarketsVolumeChange
Politics3,256$350.5M-48.2%
Sports16,686$1.5B-72.3%
Crypto65,436$936.0M-24.8%
Economics382$110.6M-23.9%
Finance696$12.7M-62%
Tech174$1.6M-86.7%
Culture317$7.0M-59%
Weather103$1.5M+38%
Misc236,759$2.8B-40.5%
Mentions17$66.9K+3.2%

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 Cleveland Guardians vs Chicago White Sox scheduled for August 9, 2026 at 6:10 PM UTC?
Polymarket US ⚾ Sports
Cleveland Guardians 52%
$9.0M
Aug 9
Closed
1

Who will win in the upcoming baseball event Cleveland Guardians vs Chicago White Sox scheduled for August 9, 2026 at 6:10 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $9.0M
2
Sabalenka vs Alexandrova
Kalshi 🎾 Sports
Ekaterina Alexandrova Outcome
$5.6M
Aug 8
Closed
2

Sabalenka vs Alexandrova

Kalshi
🎾 Sports Closed
Outcome Ekaterina Alexandrova
Volume $5.6M
3
Los Angeles D vs Arizona
Kalshi ⚾ Sports
Los Angeles Dodgers Outcome
$5.5M
Aug 8
Closed
3

Los Angeles D vs Arizona

Kalshi
⚾ Sports Closed
Outcome Los Angeles Dodgers
Volume $5.5M
4
Samsonova vs Rybakina
Kalshi 🎾 Sports
Elena Rybakina Outcome
$5.2M
Aug 9
Closed
4

Samsonova vs Rybakina

Kalshi
🎾 Sports Closed
Outcome Elena Rybakina
Volume $5.2M
5
Wyndham Championship Winner
Kalshi ⛳ Sports
Michael Brennan 90%
$5.2M
$78.7M
Aug 22
Active
5

Wyndham Championship Winner

Kalshi
⛳ Sports Active
Michael Brennan 90%
Beau Hossler 8%
Benjamin James 3%
Tom Kim 1%
Hideki Matsuyama 1%
Cameron Young 1%
Sahith Theegala 1%
Jackson Koivun 1%
Davis Thompson 1%
Brooks Koepka 1%
Justin Thomas 1%
Nicolas Echavarria 1%
Alex Smalley 1%
Ben Kohles 1%
Jordan Spieth 1%
Billy Horschel 1%
Kevin Yu 1%
Alex Noren 1%
Max Greyserman 1%
Denny McCarthy 1%
Peter Malnati 1%
Aaron Rai 1%
David Skinns 1%
Alex Fitzpatrick 1%
Jackson Suber 1%
Rasmus Højgaard 1%
Eric Cole 1%
Harry Hall 1%
Michael Kim 1%
Chandler Phillips 1%
Erik Van Rooyen 1%
Davis Chatfield 1%
Jordan L. Smith 1%
Sungjae Im 1%
Tom Hoge 1%
Chris Kirk 1%
John Parry 1%
Joel Dahmen 1%
Zachary Bauchou 1%
Rafael Campos 1%
Hayden Springer 1%
Mackenzie Hughes 1%
Trace Crowe 1%
Matti Schmid 1%
Joe Highsmith 1%
Tyler Collet 1%
Austin Eckroat 1%
Christiaan Bezuidenhout 1%
Matt Wallace 1%
Webb Simpson 1%
Doug Ghim 1%
Marco Penge 1%
Andrew Novak 1%
Chad Ramey 1%
Keith Mitchell 1%
Bud Cauley 1%
Brandt Snedeker 1%
Tony Finau 1%
Keegan Bradley 1%
Kris Ventura 1%
Rico Hoey 1%
Lee Hodges 1%
Maverick McNealy 1%
Kevin Roy 1%
Austin Smotherman 1%
Taylor Pendrith 1%
Matthew McCarty 1%
Danny Walker 1%
Neal Shipley 1%
Adrien Saddier 1%
Justin Lower 1%
Patrick Fishburn 1%
Nick Taylor 1%
Thorbjørn Olesen 1%
Kihei Akina 1%
Andrew Putnam 1%
Ricky Castillo 1%
Pontus Nyholm 1%
Patton Kizzire 1%
Kevin Streelman 1%
Kensei Hirata 1%
Volume
$5.2M
Open Int.
$78.7M
Ends
Aug 22
6
Who will win in the upcoming baseball event Cincinnati Reds vs Washington Nationals scheduled for August 9, 2026 at 4:15 PM UTC?
Polymarket US ⚾ Sports
Cincinnati Reds 50%
$4.0M
Aug 9
Closed
6

Who will win in the upcoming baseball event Cincinnati Reds vs Washington Nationals scheduled for August 9, 2026 at 4:15 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $4.0M
7
Tampa Bay vs Seattle
Kalshi ⚾ Sports
Tampa Bay Outcome
$3.7M
Aug 8
Closed
7

Tampa Bay vs Seattle

Kalshi
⚾ Sports Closed
Outcome Tampa Bay
Volume $3.7M
8
Toronto vs Philadelphia
Kalshi ⚾ Sports
Toronto Blue Jays Outcome
$3.4M
Aug 8
Closed
8

Toronto vs Philadelphia

Kalshi
⚾ Sports Closed
Outcome Toronto Blue Jays
Volume $3.4M
9
Wyndham Championship Winner: Michael Brennan
Polymarket US ⛳ Sports
Michael Brennan 26%
$3.4M
Aug 23
Active
9

Wyndham Championship Winner: Michael Brennan

Polymarket US
⛳ Sports Active
Michael Brennan 26%
Volume
$3.4M
Open Int.
Ends
Aug 23
10
Who will win in the upcoming baseball event Atlanta Braves vs New York Yankees scheduled for August 9, 2026 at 5:35 PM UTC?
Polymarket US ⚾ Sports
New York Yankees 57%
$3.3M
Aug 9
Closed
10

Who will win in the upcoming baseball event Atlanta Braves vs New York Yankees scheduled for August 9, 2026 at 5:35 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $3.3M
11
Pro Football Coach of the Year: Todd Monken
Polymarket US 🏈 Sports
Todd Monken 10%
$3.1M
Feb 25
Active
11

Pro Football Coach of the Year: Todd Monken

Polymarket US
🏈 Sports Active
Todd Monken 10%
Volume
$3.1M
Open Int.
Ends
Feb 25
12
Fils vs Norrie
Kalshi 🎾 Sports
Arthur Fils Outcome
$3.1M
Aug 8
Closed
12

Fils vs Norrie

Kalshi
🎾 Sports Closed
Outcome Arthur Fils
Volume $3.1M
13
Rinderknech vs Nakashima
Kalshi 🎾 Sports
Brandon Nakashima Outcome
$2.9M
Aug 8
Closed
13

Rinderknech vs Nakashima

Kalshi
🎾 Sports Closed
Outcome Brandon Nakashima
Volume $2.9M
14
Toronto vs Philadelphia
Kalshi ⚾ Sports
Philadelphia 85%
$2.7M
$2.8M
Aug 12
Closing Soon
14

Toronto vs Philadelphia

Kalshi
⚾ Sports Closing Soon
Philadelphia 85%
Toronto 16%
Volume
$2.7M
Open Int.
$2.8M
Ends
Aug 12
15
A's vs Boston
Kalshi ⚾ Sports
Oakland Athletics Outcome
$2.7M
Aug 8
Closed
15

A's vs Boston

Kalshi
⚾ Sports Closed
Outcome Oakland Athletics
Volume $2.7M
16
Wyndham Championship Winner: Beau Hossler
Polymarket US ⛳ Sports
Beau Hossler 23%
$2.7M
Aug 23
Active
16

Wyndham Championship Winner: Beau Hossler

Polymarket US
⛳ Sports Active
Beau Hossler 23%
Volume
$2.7M
Open Int.
Ends
Aug 23
17
Wyndham Championship Winner: Tom Kim
Polymarket US ⛳ Sports
Tom Kim 22%
$2.6M
Aug 23
Active
17

Wyndham Championship Winner: Tom Kim

Polymarket US
⛳ Sports Active
Tom Kim 22%
Volume
$2.6M
Open Int.
Ends
Aug 23
18
Tien vs Tirante
Kalshi 🎾 Sports
Learner Tien Outcome
$2.4M
Aug 9
Closed
18

Tien vs Tirante

Kalshi
🎾 Sports Closed
Outcome Learner Tien
Volume $2.4M
19
Zhang vs Zhu
Kalshi 🎾 Sports
Junhan Zhang Outcome
$2.3M
Aug 9
Closed
19

Zhang vs Zhu

Kalshi
🎾 Sports Closed
Outcome Junhan Zhang
Volume $2.3M
20
Atlanta vs New York Y
Kalshi ⚾ Sports
Atlanta Braves Outcome
$2.3M
Aug 9
Closed
20

Atlanta vs New York Y

Kalshi
⚾ Sports Closed
Outcome Atlanta Braves
Volume $2.3M
21
Svitolina vs Anisimova
Kalshi 🎾 Sports
Elina Svitolina Outcome
$2.3M
Aug 8
Closed
21

Svitolina vs Anisimova

Kalshi
🎾 Sports Closed
Outcome Elina Svitolina
Volume $2.3M
22
Fight Night: Gamrot vs Salkilld
Kalshi 🥊 Sports
Quillan Salkilld Outcome
$2.1M
Aug 8
Closed
22

Fight Night: Gamrot vs Salkilld

Kalshi
🥊 Sports Closed
Outcome Quillan Salkilld
Volume $2.1M
23
Miami vs Monterrey
Kalshi ⚽ Sports
Monterrey Outcome
$2.1M
Aug 8
Closed
23

Miami vs Monterrey

Kalshi
⚽ Sports Closed
Outcome Monterrey
Volume $2.1M
24
LoL: BNK FEARX vs Kiwoom DRX (BO3) - LCK Round 3-4 Rise Group
Polymarket ⚽ Sports
BNK FEARX Outcome
$2.0M
Aug 9
Closed
24

LoL: BNK FEARX vs Kiwoom DRX (BO3) - LCK Round 3-4 Rise Group

Polymarket
⚽ Sports Closed
Outcome BNK FEARX
Volume $2.0M
25
Toluca vs Los Angeles F
Kalshi ⚽ Sports
Los Angeles FC Outcome
$2.0M
Aug 8
Closed
25

Toluca vs Los Angeles F

Kalshi
⚽ Sports Closed
Outcome Los Angeles FC
Volume $2.0M
26
Seattle vs Portland
Kalshi 🏀 Sports
Portland Outcome
$2.0M
Aug 8
Closed
26

Seattle vs Portland

Kalshi
🏀 Sports Closed
Outcome Portland
Volume $2.0M
27
LoL: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 Legend Group
Polymarket ⚽ Sports
Dplus KIA Outcome
$1.8M
Aug 9
Closed
27

LoL: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 Legend Group

Polymarket
⚽ Sports Closed
Outcome Dplus KIA
Volume $1.8M
28
Tampa Bay vs Seattle: Total Runs
Kalshi ⚾ Sports
Over 1.5 runs Outcome
$1.8M
Aug 8
Closed
28

Tampa Bay vs Seattle: Total Runs

Kalshi
⚾ Sports Closed
Outcome Over 1.5 runs
Volume $1.8M
29
BTC 15 min · $64,919.28 target
Kalshi ₿ Crypto
Price up Outcome
$1.7M
Aug 8
Closed
29

BTC 15 min · $64,919.28 target

Kalshi
₿ Crypto Closed
Outcome Price up
Volume $1.7M
30
Korneeva vs Gauff
Kalshi 🎾 Sports
Coco Gauff 95%
$1.7M
$2.2M
Aug 23
Active
30

Korneeva vs Gauff

Kalshi
🎾 Sports Active
Coco Gauff 95%
Alina Korneeva 7%
Volume
$1.7M
Open Int.
$2.2M
Ends
Aug 23
1
Wyndham Championship Winner
Kalshi ⛳ Sports
Michael Brennan 90%
$15.3M
$78.7M
Aug 22
Active
1

Wyndham Championship Winner

Kalshi
⛳ Sports Active
Michael Brennan 90%
Beau Hossler 8%
Benjamin James 3%
Tom Kim 1%
Hideki Matsuyama 1%
Cameron Young 1%
Sahith Theegala 1%
Jackson Koivun 1%
Davis Thompson 1%
Brooks Koepka 1%
Justin Thomas 1%
Nicolas Echavarria 1%
Alex Smalley 1%
Ben Kohles 1%
Jordan Spieth 1%
Billy Horschel 1%
Kevin Yu 1%
Alex Noren 1%
Max Greyserman 1%
Denny McCarthy 1%
Peter Malnati 1%
Aaron Rai 1%
David Skinns 1%
Alex Fitzpatrick 1%
Jackson Suber 1%
Rasmus Højgaard 1%
Eric Cole 1%
Harry Hall 1%
Michael Kim 1%
Chandler Phillips 1%
Erik Van Rooyen 1%
Davis Chatfield 1%
Jordan L. Smith 1%
Sungjae Im 1%
Tom Hoge 1%
Chris Kirk 1%
John Parry 1%
Joel Dahmen 1%
Zachary Bauchou 1%
Rafael Campos 1%
Hayden Springer 1%
Mackenzie Hughes 1%
Trace Crowe 1%
Matti Schmid 1%
Joe Highsmith 1%
Tyler Collet 1%
Austin Eckroat 1%
Christiaan Bezuidenhout 1%
Matt Wallace 1%
Webb Simpson 1%
Doug Ghim 1%
Marco Penge 1%
Andrew Novak 1%
Chad Ramey 1%
Keith Mitchell 1%
Bud Cauley 1%
Brandt Snedeker 1%
Tony Finau 1%
Keegan Bradley 1%
Kris Ventura 1%
Rico Hoey 1%
Lee Hodges 1%
Maverick McNealy 1%
Kevin Roy 1%
Austin Smotherman 1%
Taylor Pendrith 1%
Matthew McCarty 1%
Danny Walker 1%
Neal Shipley 1%
Adrien Saddier 1%
Justin Lower 1%
Patrick Fishburn 1%
Nick Taylor 1%
Thorbjørn Olesen 1%
Kihei Akina 1%
Andrew Putnam 1%
Ricky Castillo 1%
Pontus Nyholm 1%
Patton Kizzire 1%
Kevin Streelman 1%
Kensei Hirata 1%
Volume
$15.3M
Open Int.
$78.7M
Ends
Aug 22
2
Jessica Pegula vs. Alexandra Eala
Polymarket US 🎾 Sports
Alexandra Eala Outcome
$14.4M
$435.8K
Aug 3
Closed
2

Jessica Pegula vs. Alexandra Eala

Polymarket US
🎾 Sports Closed
Outcome Alexandra Eala
Volume $14.4M
3
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
3

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
4
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
4

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
5
Fed Decision in September?
Polymarket 📊 Economics
Will there be no change in Fed interest rates after the September 2026 meeting 63%
$9.6M
$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 36%
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
$9.6M
Open Int.
$24.5K
Ends
Sep 15
6
Strait of Hormuz traffic returns to normal by...?
Polymarket 🏛️ Politics
August 31 5%
$9.2M
$0
Aug 30
Active
6

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

Polymarket
🏛️ Politics Active
August 31 5%
August 15 1%
Volume
$9.2M
Open Int.
$0
Ends
Aug 30
7
Who will win in the upcoming baseball event Cleveland Guardians vs Chicago White Sox scheduled for August 9, 2026 at 6:10 PM UTC?
Polymarket US ⚾ Sports
Cleveland Guardians 52%
$9.0M
Aug 9
Closed
7

Who will win in the upcoming baseball event Cleveland Guardians vs Chicago White Sox scheduled for August 9, 2026 at 6:10 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome
Volume $9.0M
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 Atlanta Braves vs New York Yankees scheduled for August 8, 2026 at 7:05 PM UTC?
Polymarket US ⚾ Sports
New York Yankees Outcome
$6.5M
$63.8K
Aug 8
Closed
9

Who will win in the upcoming baseball event Atlanta Braves vs New York Yankees scheduled for August 8, 2026 at 7:05 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome New York Yankees
Volume $6.5M
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
Wyndham Championship End of Round 1 Leader: Benjamin James
Polymarket US ⛳ Sports
Benjamin James 1%
$5.9M
Aug 7
Closed
11

Wyndham Championship End of Round 1 Leader: Benjamin James

Polymarket US
⛳ Sports Closed
Outcome
Volume $5.9M
12
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
12

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
13
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
13

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
14
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
14

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
15
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
15

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
16
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
San Francisco Giants Outcome
$4.8M
$99.7K
Aug 7
Closed
16

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 San Francisco Giants
Volume $4.8M
17
Dota 2: Team Falcons vs Team Liquid (BO5) - 1win Essence Playoffs
Polymarket ⚽ Sports
Team Liquid Outcome
$4.3M
Aug 5
Closed
17

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

Polymarket
⚽ Sports Closed
Outcome Team Liquid
Volume $4.3M
18
Who will win in the upcoming baseball event Cincinnati Reds vs Washington Nationals scheduled for August 9, 2026 at 4:15 PM UTC?
Polymarket US ⚾ Sports
Washington Nationals Outcome
$4.0M
$51.7K
Aug 9
Closed
18

Who will win in the upcoming baseball event Cincinnati Reds vs Washington Nationals scheduled for August 9, 2026 at 4:15 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Washington Nationals
Volume $4.0M
19
Presidential Election Winner 2028
Polymarket 🏛️ Politics
JD Vance 21%
$3.9M
$37.7M
Nov 6
Active
19

Presidential Election Winner 2028

Polymarket
🏛️ Politics Active
JD Vance 21%
Marco Rubio 12%
Gavin Newsom 10%
Alexandria Ocasio-Cortez 10%
Jon Ossoff 10%
Kamala Harris 5%
Josh Shapiro 3%
Dwayne 'The Rock' Johnson 2%
Donald Trump 2%
Tucker Carlson 2%
Thomas Massie 2%
Pete Buttigieg 2%
Ron DeSantis 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%
Andy Beshear 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%
Tom Cotton 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%
Abigail Spanberger 1%
Mike Johnson 1%
Rick Scott 1%
Doug Burgum 1%
Hakeem Jeffries 1%
Volume
$3.9M
Open Int.
$37.7M
Ends
Nov 6
20
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
20

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
21
LoL: HANJIN BRION vs Nongshim Red Force (BO3) - LCK Round 3-4 Rise Group
Polymarket ⚽ Sports
HANJIN BRION Outcome
$3.9M
Aug 5
Closed
21

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

Polymarket
⚽ Sports Closed
Outcome HANJIN BRION
Volume $3.9M
22
Wyndham Championship Winner: Michael Brennan
Polymarket US ⛳ Sports
Michael Brennan 26%
$3.6M
Aug 23
Active
22

Wyndham Championship Winner: Michael Brennan

Polymarket US
⛳ Sports Active
Michael Brennan 26%
Volume
$3.6M
Open Int.
Ends
Aug 23
23
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
23

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
24
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
24

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
25
LoL: Nongshim Red Force vs T1 (BO3) - KeSPA Cup Last Chance Qualifier
Polymarket ⚽ Sports
Nongshim Red Force Outcome
$3.4M
Aug 3
Closed
25

LoL: Nongshim Red Force vs T1 (BO3) - KeSPA Cup Last Chance Qualifier

Polymarket
⚽ Sports Closed
Outcome Nongshim Red Force
Volume $3.4M
26
Who will win in the upcoming baseball event Atlanta Braves vs New York Yankees scheduled for August 9, 2026 at 5:35 PM UTC?
Polymarket US ⚾ Sports
Atlanta Braves Outcome
$3.3M
$58.3K
Aug 9
Closed
26

Who will win in the upcoming baseball event Atlanta Braves vs New York Yankees scheduled for August 9, 2026 at 5:35 PM UTC?

Polymarket US
⚾ Sports Closed
Outcome Atlanta Braves
Volume $3.3M
27
Will the U.S. invade Iran before 2027?
Polymarket 🏛️ Politics
No 83%
$3.3M
$5.8M
Dec 30
Active
27

Will the U.S. invade Iran before 2027?

Polymarket
🏛️ Politics Active
Yes 17%
No 83%
Volume
$3.3M
Open Int.
$5.8M
Ends
Dec 30
28
LoL: Dplus KIA vs T1 (BO3) - LCK Round 3-4 Legend Group
Polymarket ⚽ Sports
T1 Outcome
$3.3M
Aug 6
Closed
28

LoL: Dplus KIA vs T1 (BO3) - LCK Round 3-4 Legend Group

Polymarket
⚽ Sports Closed
Outcome T1
Volume $3.3M
29
UEFA Champions League: 2027 Champion
Polymarket ⚽ Sports
Real Madrid 14%
$3.2M
$0
May 30
Active
29

UEFA Champions League: 2027 Champion

Polymarket
⚽ Sports Active
Real Madrid 14%
Barcelona 14%
Paris Saint-Germain 14%
Bayern Munich 14%
Arsenal 13%
Manchester City 13%
Liverpool 8%
Manchester United 3%
Inter Milan 3%
Atlético Madrid 2%
Shakhtar Donetsk 1%
Slavia Prague 1%
Sporting CP 1%
Aston Villa 1%
Porto 1%
Roma 1%
Feyenoord 1%
Club Brugge 1%
Lille 1%
RB Leipzig 1%
Lens 1%
Villarreal 1%
Volume
$3.2M
Open Int.
$0
Ends
May 30
30
LoL: Team WE vs ThunderTalk Gaming (BO3) - LPL Group Ascend
Polymarket ⚽ Sports
ThunderTalk Gaming Outcome
$3.2M
Aug 7
Closed
30

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

Polymarket
⚽ Sports Closed
Outcome ThunderTalk Gaming
Volume $3.2M
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
France vs. Spain - More Markets
Polymarket ⚽ Sports
Spain Outcome
$76.3M
Jul 14
Closed
5

France vs. Spain - More Markets

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $76.3M
6
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
6

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

Polymarket US
⚽ Sports Closed
Outcome England
Volume $64.1M
7
England vs. Argentina - More Markets
Polymarket ⚽ Sports
Argentina Outcome
$59.0M
Jul 15
Closed
7

England vs. Argentina - More Markets

Polymarket
⚽ Sports Closed
Outcome Argentina
Volume $59.0M
8
Yosuke Watanuki vs. Andre Ilagan
Polymarket US 🎾 Sports
Yosuke Watanuki Outcome
$53.1M
$117.8K
Jul 21
Closed
8

Yosuke Watanuki vs. Andre Ilagan

Polymarket US
🎾 Sports Closed
Outcome Yosuke Watanuki
Volume $53.1M
9
France vs. Spain
Polymarket ⚽ Sports
Spain Outcome
$51.3M
Jul 14
Closed
9

France vs. Spain

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $51.3M
10
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
10

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
11
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
11

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

Polymarket US
⚽ Sports Closed
Outcome Argentina
Volume $49.2M
12
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
12

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
13
Jannik Sinner vs. Alexander Zverev
Polymarket US 🎾 Sports
Jannik Sinner Outcome
$40.3M
$366.7K
Jul 12
Closed
13

Jannik Sinner vs. Alexander Zverev

Polymarket US
🎾 Sports Closed
Outcome Jannik Sinner
Volume $40.3M
14
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
14

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
15
Spain vs. Belgium - More Markets
Polymarket ⚽ Sports
Spain Outcome
$36.0M
Jul 10
Closed
15

Spain vs. Belgium - More Markets

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $36.0M
16
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
16

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

Polymarket US
⚽ Sports Closed
Outcome England
Volume $33.8M
17
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
17

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
18
Spain vs. Belgium
Polymarket ⚽ Sports
Spain Outcome
$33.3M
Jul 10
Closed
18

Spain vs. Belgium

Polymarket
⚽ Sports Closed
Outcome Spain
Volume $33.3M
19
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
19

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
20
England vs. Argentina
Polymarket ⚽ Sports
Argentina Outcome
$31.5M
Jul 15
Closed
20

England vs. Argentina

Polymarket
⚽ Sports Closed
Outcome Argentina
Volume $31.5M
21
England vs. Argentina - Exact Score
Polymarket ⚽ Sports
Exact Score: England 1 - 2 Argentina Outcome
$30.2M
Jul 15
Closed
21

England vs. Argentina - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: England 1 - 2 Argentina
Volume $30.2M
22
Rio Noguchi vs. Braden Shick
Polymarket US 🎾 Sports
Rio Noguchi Outcome
$29.1M
$71.8K
Jul 21
Closed
22

Rio Noguchi vs. Braden Shick

Polymarket US
🎾 Sports Closed
Outcome Rio Noguchi
Volume $29.1M
23
Norway vs. England - More Markets
Polymarket ⚽ Sports
England Outcome
$28.6M
Jul 11
Closed
23

Norway vs. England - More Markets

Polymarket
⚽ Sports Closed
Outcome England
Volume $28.6M
24
France vs. Spain - Exact Score
Polymarket ⚽ Sports
Exact Score: France 0 - 2 Spain Outcome
$28.4M
Jul 14
Closed
24

France vs. Spain - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: France 0 - 2 Spain
Volume $28.4M
25
Presidential Election Winner 2028
Polymarket 🏛️ Politics
JD Vance 21%
$26.9M
$37.7M
Nov 6
Active
25

Presidential Election Winner 2028

Polymarket
🏛️ Politics Active
JD Vance 21%
Marco Rubio 12%
Gavin Newsom 10%
Alexandria Ocasio-Cortez 10%
Jon Ossoff 10%
Kamala Harris 5%
Josh Shapiro 3%
Dwayne 'The Rock' Johnson 2%
Donald Trump 2%
Tucker Carlson 2%
Thomas Massie 2%
Pete Buttigieg 2%
Ron DeSantis 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%
Andy Beshear 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%
Tom Cotton 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%
Abigail Spanberger 1%
Mike Johnson 1%
Rick Scott 1%
Doug Burgum 1%
Hakeem Jeffries 1%
Volume
$26.9M
Open Int.
$37.7M
Ends
Nov 6
26
Will Trump be in the WC Champions Photo?
Polymarket 🏛️ Politics
Trump Outcome
$26.6M
Jul 19
Closed
26

Will Trump be in the WC Champions Photo?

Polymarket
🏛️ Politics Closed
Outcome Trump
Volume $26.6M
27
Spain vs. Argentina - Exact Score
Polymarket ⚽ Sports
Exact Score: Spain 0 - 0 Argentina Outcome
$26.2M
Jul 19
Closed
27

Spain vs. Argentina - Exact Score

Polymarket
⚽ Sports Closed
Outcome Exact Score: Spain 0 - 0 Argentina
Volume $26.2M
28
Will Erling Haaland record at least 1 goals in NOR vs ENG?
Polymarket US ⚽ Sports
No Outcome
$26.0M
$678.3K
Jul 11
Closed
28

Will Erling Haaland record at least 1 goals in NOR vs ENG?

Polymarket US
⚽ Sports Closed
Outcome No
Volume $26.0M
29
Milwaukee Brewers vs. Pittsburgh Pirates
Polymarket US ⚾ Sports
Pittsburgh Pirates Outcome
$24.9M
$197.5K
Jul 12
Closed
29

Milwaukee Brewers vs. Pittsburgh Pirates

Polymarket US
⚾ Sports Closed
Outcome Pittsburgh Pirates
Volume $24.9M
30
Democratic Presidential Nominee 2028
Polymarket 🏛️ Politics
Gavin Newsom 18%
$24.4M
$14.7M
Nov 6
Active
30

Democratic Presidential Nominee 2028

Polymarket
🏛️ Politics Active
Gavin Newsom 18%
Jon Ossoff 16%
Alexandria Ocasio-Cortez 15%
Kamala Harris 8%
Josh Shapiro 5%
Pete Buttigieg 5%
Mark Kelly 3%
Jon Stewart 2%
Andy Beshear 2%
Ro Khanna 2%
Rahm Emanuel 2%
James Talarico 2%
Hunter Biden 1%
Kim Kardashian 1%
Stephen A. Smith 1%
Zohran Mamdani 1%
Dwayne 'The Rock' Johnson 1%
MrBeast 1%
Liz Cheney 1%
Raphael Warnock 1%
Bernie Sanders 1%
LeBron James 1%
Barack Obama 1%
J.B. Pritzker 1%
Chelsea Clinton 1%
Andrew Yang 1%
Beto O’Rourke 1%
Michelle Obama 1%
Ruben Gallego 1%
George Clooney 1%
Wes Moore 1%
Phil Murphy 1%
Hillary Clinton 1%
Cory Booker 1%
Jasmine Crockett 1%
Oprah Winfrey 1%
Mark Cuban 1%
John Fetterman 1%
Roy Cooper 1%
Tim Walz 1%
Gina Raimondo 1%
Jared Polis 1%
Gretchen Whitmer 1%
Chris Murphy 1%
Graham Platner 1%
Abigail Spanberger 1%
Elissa Slotkin 1%
Josh Stein 1%
Hakeem Jeffries 1%
Alex Padilla 1%
Adam Schiff 1%
Volume
$24.4M
Open Int.
$14.7M
Ends
Nov 6

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.