KALSHI What Is It: a Practical Trader's Overview
Kalshi what is it? Kalshi is a U.S.-based, CFTC-regulated Designated Contract Market that offers binary event contracts. Traders buy YES or NO shares that settle at $1.00 if the outcome occurs and $0.00 otherwise. All deposits, balances, and settlements are in USD, and accounts must be fully verified with KYC and a U.S. bank link. This article explains the platform and how arbitrage opportunities can arise from the way prices are quoted on Kalshi.
How Kalshi works for traders
Kalshi operates a centralised order book where YES and NO contracts on real-world events are traded. Each contract has a fixed settlement asset of USD and an individual price between 0.01 and 0.99. The sum of the YES and NO best-ask prices should total roughly $1.00 at fair value, creating potential edge opportunities when spreads exist. Traders place limit or market orders, and Kalshi enforces self-trade prevention to protect liquidity.
Regulation and settlement on Kalshi
Kalshi is regulated as a Designated Contract Market (DCM) by the CFTC, and it is the legally sanctioned US platform for event contracts. Payouts are settled in USD, with each winning YES or NO contract paying out $1.00 per contract. Settlements are determined by Kalshi market operations using predefined resolution rules, not by external oracles, and withdrawals go through traditional banking rails like ACH or supported debit networks.
Arbitrage-friendly edge on binary markets
A core KalshiArb concept is the edge created when bestAsk(YES) + bestAsk(NO) is less than $1.00. In that case, you can buy both legs to lock in a risk-defined spread. Edges exist in both single markets and across mutually exclusive child markets under the same event_ticker, where the sum of child YES prices falls short of $1.00. These patterns can persist for minutes to hours and form the basis for intra-market arbitrage.
Flow and access for US-based traders
To participate, you must be 18+, a U.S. resident in supported states, and complete KYC. Kalshi requires linking a U.S. bank account or eligible debit card, with identity verification mandatory. The platform operates with a USD settlement and does not support crypto on-chain settlement, so all profits and losses are reflected in USD balances.
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FAQ
- What does Kalshi mean by a binary YES/NO contract?
- Each Kalshi market resolves to either YES or NO. If YES resolves true, YES contracts pay $1.00 and NO contracts pay $0.00, and vice versa. The fair value across YES and NO should sum to $1.00.
- How does Kalshi settle contracts and handle payments?
- Settlements are determined by Kalshi's resolution rules and official sources. Payouts are in USD, and withdrawals go through ACH or supported debit rails. There is no on-chain settlement.
- Can I reliably arb Kalshi markets using YES + NO price gaps?
- Yes, in theory, if bestAsk(YES) + bestAsk(NO) < $1.00 you can buy both sides and lock in a risk-defined edge. Real-world edges depend on liquidity, fees, and slippage, so monitor the live order book and fee structure.
- Are Kalshi markets available to all US residents?
- Kalshi is US-based and regulated, but eligibility varies by state. Check Kalshi’s published state-eligibility list to confirm access and any restrictions on particular event contracts.