Kalshi volume and fees, by category
Where the money is trading on Kalshi right now, across every category, and the taker fee that applies to each.
Volume and open interest are pulled from Kalshi's public API and refreshed hourly. Fees are its published rates, so this reads against the fees and rebates calculator. Kalshi does run a Liquidity Incentive Program (a per-market reward pool for resting orders), but its public API doesn't expose the pools the way Polymarket's does, so there is no live rewards section here; and it has no public trader leaderboard, so no trader section, unlike the Polymarket dashboard.
| Category | Volume (24h) | Share | Taker fees |
|---|---|---|---|
| Elections226 | $2.7M | 47% | $93k |
| Sports279 | $2.6M | 45% | $90k |
| Politics85 | $259k | 4.6% | $9k |
| Entertainment66 | $84k | 1.5% | $3k |
| Financials62 | $37k | 0.7% | $1k |
| Mentions7 | $19k | 0.3% | $678 |
| Economics57 | $16k | 0.3% | $576 |
| Companies17 | $10k | 0.2% | $366 |
| Science and Technology18 | $6k | 0.1% | $197 |
| Climate and Weather12 | $2k | 0.0% | $82 |
| Health3 | $1k | 0.0% | $44 |
| Social2 | $193 | 0.0% | $7 |
| Transportation1 | $15 | 0.0% | $1 |
| World2 | $3 | 0.0% | $0 |
Count is active events in each category. Taker fees are estimated on the 24h volume at a 50¢ average price (the multiplier runs higher on crypto markets). Makers pay effectively nothing, since maker fees round to about $0, and instead earn from Kalshi's Liquidity Incentive Program, up to $1,000 per market per day for resting orders. The exact per-trade maths is in the calculator.
- 12028 Democratic presidential nomineeElections$1.1M
- 22027 Pro Football ChampionSports$1.0M
- 3College Football National Championship WinnerSports$384k
- 4Which party will win the U.S. Senate?Elections$363k
- 52028 Republican presidential nomineeElections$295k
- 62027 Pro Basketball ChampionSports$206k
- 7Who will be Trump's next Press Secretary?Politics$189k
- 82028 U.S. Presidential Election winner?Elections$186k
- 9MVP Winner?Sports$142k
- 10South Carolina Republican Senate special primary runoff margin of victory?Elections$133k
- 11Men's 2027 College Basketball ChampionSports$108k
- 122026 Midterms: Congress Balance of Power?Elections$89k
Kalshi pays makers to provide liquidity through its Liquidity Incentive Program: a per-market reward pool split by how much resting size you keep near the reference price, capped at $1,000 per market per day, with a higher tier for designated market makers. Kalshi does not publish the per-market pools through its public API, so unlike the Polymarket rewards they cannot be shown live here.
- 2027 Best Picture Oscar nominations?4¢ → 60¢+56¢
- Will the margin of victory for Ed Markey in the 2026 Massachusetts Democratic Senate primary be above 20%?20¢ → 47¢+27¢
- Will Amir Ohana win the top nationwide vote-getter in the 2026 Likud primary for its 26th Knesset candidate list?74¢ → 90¢+16¢
- Will Alina Habba be the next White House Press Secretary of United States?19¢ → 35¢+16¢
- Will Apple Inc. release iPhone 18 Pro before Oct 1, 2026?76¢ → 62¢-14¢
- Will Georgia Governor winner be Democratic party and Georgia Senate winner be Democratic party?74¢ → 62¢-12¢
- Will Dan Bilzerian receive at least 7.5% of the popular vote in the FL-06 Republican primary?50¢ → 39¢-11¢
- Will Scott Jennings be the next White House Press Secretary of United States?24¢ → 14¢-10¢
- Will Matthew Williams qualify for the runoff in the 2026 Alaska top-four primary?38¢ → 29¢-9¢
- Will Anna Kelly be the next White House Press Secretary of United States?32¢ → 24¢-8¢
- Will the Pittsburgh pro football team win at least 10 games this season?33¢ → 40¢+7¢
- Will Dan Bilzerian receive at least 20% of the popular vote in the FL-06 Republican primary?15¢ → 8¢-7¢
- When will Anthropic officially announce an IPO?$353k totalin 14 days
- When will OpenAI officially announce an IPO?$318k totalin 14 days
- When will Tesla and SpaceX merge?$257k totalin 14 days
- Howard Lutnick out as Commerce Secretary?$74k totalin 14 days
- When will Kari Lake be confirmed as Ambassador to Jamaica?$42k totalin 14 days
- Tim Walz out as Governor of Minnesota?$30k totalin 14 days
- Kash Patel out as FBI Director?$26k totalin 14 days
- When will Starlink officially announce an IPO?$25k totalin 14 days
- Ruben Gallego out as Senator?$14k totalin 14 days
- Will Christopher Luxon announce their departure as Prime Minister?$9k totalin 14 days
- Will Anthropic disable Fable 5 access for US customers?$9k totalin 13 days
- Sara Duterte out as Vice President of the Philippines?$9k totalin 14 days
The fee shown is at 50¢. The real one depends on your price.
Kalshi's fee follows a curve that peaks in the middle and fades toward 0 and 100¢, and it rounds up to the next cent. The fees and rebates calculator does the exact maths for any price and size, across Kalshi, Polymarket and six more venues.