What is Kalshi?
Kalshi is a regulated exchange where you trade simple Yes/No contracts on real-world events: Fed rate decisions, election outcomes, weather, sports, and more. If you have ever wanted to put a position on something happening, Kalshi is a marketplace for exactly that.
The key word is exchange. Kalshi is not a sportsbook setting odds against you; it is a venue where traders buy and sell contracts with each other, and the price is just what the crowd will pay.
Event contracts in one sentence
A Kalshi contract pays $1 if the event happens and $0 if it does not, and it trades anywhere from 1 cent to 99 cents in between. Buy a Yes contract at 60 cents and you make 40 cents if the event happens, or lose your 60 cents if it does not.
Because the payout is fixed at $1, the price you pay maps directly to an implied probability: a 60 cent contract reflects a roughly 60% market view that the answer is Yes.
It is regulated, not a betting site
Kalshi operates as a CFTC-regulated Designated Contract Market. Its contracts are treated as financial derivatives on real-world outcomes, traded on a regulated exchange, rather than as bets booked against a house.
That regulatory status is why Kalshi feels more like a brokerage app than a sportsbook, and it matters for everything from how trades clear to how the gains may be taxed.
There is no house
Every contract has two sides. When you buy Yes, someone is effectively taking the No side, and the two sides together cost $1. Kalshi matches buyers and sellers and earns small trading fees rather than profiting from your losses.
This is the deep difference from a sportsbook: there are no posted odds baked with a margin in the bookmaker's favor. The market sets the price, and you can buy or sell at any time before the event settles.
Your risk is capped
Because a contract can only settle at $1 or $0, the most you can lose on a position is what you paid for it. There is no way to lose more than you put in on a contract, which makes the downside easy to understand before you trade.