Kalshi is a federally regulated U.S. prediction market where you trade the outcome of real-world events. Every contract is a Yes or No on a question like 'Will the Fed cut rates in September?' A Yes contract settles at $1 if the event happens and $0 if it doesn't. The price is the crowd's live probability, repriced every time money moves.
That is the whole idea. Powerful enough to build a trading career on.
What is Kalshi?
Kalshi is a U.S. exchange registered with the CFTC as a Designated Contract Market, the same federal license held by established U.S. futures exchanges. Legal in all 50 states, settling in U.S. dollars, with no VPN required. Founded in 2018 by Tarek Mansour and Luana Lopes Lara and backed by a16z and Sequoia, Kalshi opened to the public in 2021.
If the concept of a prediction market is new to you, what is a prediction market has the full category explainer.
In 2024, the U.S. Court of Appeals for the D.C. Circuit upheld Kalshi's right to list political event contracts under the Commodity Exchange Act. A venue that wins that federal challenge is not a gray-market operation. Kalshi survived it. That is what legitimate looks like. For the full breakdown, read is Kalshi legit.
How does a Kalshi contract work?
Every Kalshi market is a binary question with a verifiable real-world resolution. You take a position: Yes if you believe the outcome happens, No if you think it doesn't. At settlement, a winning Yes contract pays $1. A losing Yes contract pays $0. You profit by buying what the market has underpriced and holding to resolution, or by selling when the price moves in your favor.
A concrete example. 'Will the Fed cut rates in July?' trades at 35¢. That price reflects a 35% probability. Buy 100 Yes contracts for $35. If the Fed cuts, your position settles at $100. Your profit is $65. If they hold, you lose $35. Your maximum loss is what you put in.
You do not have to hold to settlement. If the contract moves from 35¢ to 65¢ because new information shifted the market, sell it and lock in a 30-cent gain per contract. Most active traders trade price movement, not just final resolution.
How are Kalshi prices set?
Prices on Kalshi emerge from a central limit order book. Buyers place bids, sellers place offers, trades execute when they cross. No house line, no spread set by the venue. The price is the collective judgment of every participant in that market, updated in real time as new information arrives.
This is what separates prediction markets from sportsbooks. A bookmaker sets its own line and profits from your losses. Kalshi is a marketplace where you trade against other traders who hold the opposite view. Better-informed participants push prices toward reality. That is the mechanism behind forecasting accuracy, and it is why prediction market prices are watched by analysts and policymakers.
What can you trade on Kalshi?
Kalshi lists event contracts across a broad and growing set of categories. The most liquid markets cluster around events with deep public interest and verifiable outcomes.
- Politics and elections: who wins, which legislation passes, electoral outcomes
- Economics: Fed rate decisions, CPI prints, jobs reports, GDP revisions
- Sports: game outcomes, championships, major award decisions
- Weather: hurricane landfalls, temperature milestones
- Culture and entertainment: award shows, box office outcomes
New categories keep arriving. The catalog is the full map of outcomes people care enough to price. For a detailed look at Kalshi's markets and features, read our Kalshi review.
Is Kalshi gambling?
No. The difference is structural. In gambling, the house sets the odds and profits from your losses. On Kalshi, there is no house. You trade against other participants in an open order book. The price reflects collective information from everyone with money in the market. A trader with a more accurate probability model will outperform over time. That is not how roulette works.
Kalshi is also federally regulated under the same CFTC framework that governs U.S. futures exchanges. Gambling regulation and derivatives regulation are different legal categories. Kalshi sits clearly in the latter. The question comes up because event contracts on elections and culture feel unfamiliar. The regulatory status is not unfamiliar. The CFTC settled it.
How do serious traders use Kalshi?
Understanding how Kalshi works is the foundation. Trading it well is a different game.
Kalshi's native interface was built for browsing. One market at a time, basic order entry, no cross-venue view. For a first-time user exploring the platform, it works. For a trader executing on a live Fed announcement or looking to trade the spread between Kalshi and Polymarket, it falls short.
Kairos is a professional trading terminal built for prediction markets. It unifies Kalshi, Polymarket, and Predict.fun into one book. Sub-second data. Global best bid and best ask across every venue. Advanced order types. Low-latency execution. The power of an institutional trading desk, on your laptop.
Prediction markets are becoming a real asset class. The tooling has to match. Kairos.
See you in the order books.