Kalshi: Regulated U.S. Event Contracts, Sports to Fed Decisions
Kalshi is the only U.S.-regulated venue where you can trade event contracts on real-world questions with USD settlement. The regulation is the moat. The product breadth is the surprise.
What Kalshi is
Kalshi is a designated contract market under U.S. Commodity Futures Trading Commission oversight. That regulatory status is the single most important fact about the platform. It means contracts settle in USD on Kalshi's books, U.S. residents can use it legally, and the platform operates under federal trading rules that no other major event-contract venue currently matches.
The product is a continuously-traded event contract. Shares cost between 1c and 99c each, settle at 100c if the underlying event resolves YES and 0c if it resolves NO. Most markets are binary. Some, like the 2028 Democratic nominee race, are multi-outcome with separate YES contracts for each candidate, and traders can hold positions across the full slate to express a probability distribution.
Kalshi launched in 2021 as a quirky exchange for inflation, GDP, and weather contracts. The 2024 sports approval changed the trajectory. NBA, NFL, MLB, NHL, NCAAF, NCAAB, soccer, tennis, golf, F1, UFC contracts are now standard, and Kalshi added single-game player props in 2025. That product expansion is what pulled Kalshi from finance-curio into mainstream trading volume.
How Kalshi works
Sign up with a U.S. address and government ID. Kalshi runs KYC on every account. Once verified, fund via bank ACH or wire. Trade contracts on the web app, mobile app, or via API for approved developers. Withdrawals go back to your linked bank.
Fees are bid-ask driven, not flat. Kalshi takes its margin from spreads rather than per-trade commissions on most contracts. The orderbook is visible. Limit orders work as expected. There is no margin or leverage. You can only lose what you put down.
Markets resolve from official sources stated in the contract spec. Sports markets resolve from official league results. Economic markets resolve from government data releases. Political markets resolve from the AP or other authoritative source named in the contract. The resolution criteria are written into each contract before it goes live, which removes most resolution disputes that bog down other prediction markets.
What Kalshi is good at
Cleanest U.S.-regulated path into prediction markets. If you live in the U.S. and want a non-offshore, non-crypto, IRS-friendly venue for trading event outcomes, Kalshi is the answer. The platform is built for it.
Sports market depth has grown sharply. NFL Sunday spreads and totals routinely see $1M+ contract volume per game. NBA player props, NCAAF futures, MLB game lines all have working markets. The bid-ask is competitive with mainstream sportsbooks on liquid contracts, and Kalshi pays out in USD rather than promo dollars or rollover-locked credits. For the trader graduating from DraftKings or FanDuel, the structural improvement is real.
Macroeconomic markets are unique. Kalshi runs continuous markets on Fed rate decisions, CPI prints, jobs reports, GDP growth, and weather events. Nobody else has these at scale with U.S. dollar settlement. The Fed rate decision contracts on Kalshi are some of the most useful real-time policy expectation gauges available to a retail trader, and they consistently trade within 2-3c of the implied probability from interest-rate futures markets, which is the institutional benchmark.
The interface is the best in the category. The orderbook view, the position management, the price history charts, the API documentation are all built like a serious trading product. PredictIt's UI hasn't materially changed since 2018 and Polymarket's UX is improving but still wallet-first. Kalshi feels like a real exchange.
Where Kalshi falls short
Volume on flagship political markets is well below Polymarket. The 2024 presidential race ran on Polymarket at $3B+ in total volume. Kalshi's equivalent had a fraction of that depth. For sharp traders chasing political action, the liquidity gap matters.
The market catalog skews to U.S.-centric topics. International elections, foreign policy outcomes, and global events are thin or absent compared to Polymarket. A trader whose edge is Brazilian or German politics finds Kalshi has very little to offer.
Withdrawal speed depends on bank ACH timing. Polymarket's USDC withdrawals settle in minutes. Kalshi withdrawals are 1-3 business days. That is the cost of being a regulated U.S. broker.
Fees are not zero. The spread tax on smaller markets can be material, especially when trading a 70c contract where the bid-ask sits at 67c by 73c. Use a position-sizing calculator before committing serious capital to a thin book.
Regulatory risk is real and ongoing. Kalshi's 2024 sports approval drew immediate scrutiny from individual state regulators arguing the contracts function as sports betting under state law. Several states issued cease-and-desist letters, and federal court challenges followed. Kalshi has prevailed in early rounds but the legal status of sports contracts in specific states remains in active litigation. Traders should assume the product surface can change on relatively short notice if a court ruling forces a category to be delisted.
Kalshi vs Polymarket vs PredictIt
Pick Kalshi if you want regulated U.S. access, USD settlement, and the broadest event-type coverage including macro and weather. The platform is built for the U.S. retail trader who wants a real broker, not a crypto wallet.
Pick Polymarket if you want maximum political market depth, you live outside the U.S., or you already operate in crypto. Polymarket regularly has 3-10x the volume Kalshi has on the same flagship political question, which means tighter spreads on the markets that matter most for political traders.
Pick PredictIt if you want a small-stakes political market with the longest-running historical data, and the $850 per-position cap doesn't bother you. PredictIt is the academic exchange, not the trader exchange.
Frequently Asked Questions
Is Kalshi legal in the U.S.?
Yes. Kalshi is a CFTC-designated contract market, the same regulatory class as commodity futures exchanges. Trading event contracts on Kalshi is legal for U.S. residents who pass KYC. Sports contracts faced regulatory pushback after their 2024 approval but remain available as of mid-2026.
Does Kalshi pay out in real dollars?
Yes. Every contract settles in USD on Kalshi's books. Withdrawals go back to your linked bank account via ACH, typically 1-3 business days.
How does Kalshi make money?
Mostly through bid-ask spreads on contracts and a small set of explicit fees. There is no per-trade commission on the core event contract product, but you pay the spread on every fill. Tighter spreads on liquid markets, wider on thin ones.
Can I use Kalshi from outside the U.S.?
No. Kalshi requires KYC with a U.S. address and Social Security Number or ITIN. If you are outside the U.S., Polymarket is the offshore equivalent that accepts international users.
How accurate are Kalshi prices for forecasting?
On high-volume markets like Fed decisions and NFL game lines, Kalshi prices track other major forecasting venues within 1-2c of implied probability. On thin markets the price reflects the marginal trader more than the underlying probability, and the predictive accuracy degrades. Cross-check against Polymarket where both have the same market.
Is Kalshi the same as a sportsbook?
No. A sportsbook takes the other side of your bet and profits from a built-in margin (the vig). Kalshi is an exchange where you trade contracts against other users. The platform takes a spread, not a vig. That structural difference is why Kalshi can offer better-than-sportsbook lines on liquid contracts.