Kalshi: What Is It and How It Compares to Polymarket
Kalshi is a regulated exchange that lists binary event contracts (yes/no) on real-world outcomes. Traders use Kalshi for CFTC-regulated event betting in markets like macro data, weather, and sports. If you’re asking “kalshi what is it,” expect a licensed, centralized venue with different rules and fees than Polymarket. For cross-comparison, PolyArb focuses on intra-Polymarket arbitrage and offers latency and edge advantages for traders using Polymarket liquidity.
What Kalshi actually is
Kalshi is a U.S.-based, CFTC-registered exchange that lists event contracts priced between $0 and $1. Each contract pays $1 if the event resolves YES and $0 if NO, mirroring the binary structure common to prediction markets. Kalshi operates under U.S. derivatives rules and enforces KYC/AML and other regulatory requirements for U.S. users. The platform is designed for retail and institutional participation under a regulated framework, which differentiates it from many decentralized venues.
How Kalshi differs from Polymarket
Polymarket is a decentralized prediction-market exchange running on Polygon with pUSD as the settlement asset; Kalshi is centralized and CFTC-regulated. Polymarket uses the Gnosis CTF and UMA for resolution, while Kalshi follows centralized clearing and regulatory settlement processes. Fee structures, geographic availability, and onboarding differ: Polymarket’s gas is sponsored and many geo-restrictions apply, whereas Kalshi enforces U.S. regulatory compliance and KYC for participants.
Why traders care about the difference
Regulation, custody, and market design change who can trade and how fast you can act. Kalshi’s regulation can appeal to U.S. traders seeking CFTC oversight. Polymarket’s CLOB, ERC-1155 outcomes, and gasless relayer attract crypto-native traders and bots that exploit short-lived spreads. For arbitrageurs, execution latency and market microstructure matter more than branding: that’s where PolyArb’s low-latency bot and guaranteed edge are positioned.
Where PolyArb fits in
PolyArb is a Polymarket-focused arbitrage product: $99/month, non-custodial, with 40ms latency versus ~800ms for typical free bots, Telegram and Discord alerts, and a $7.62 minimum guaranteed edge per trade. It scans intra-Polymarket binary and multi-outcome spreads and automates FAK orders and CTF operations. Note that spread-based arbitrage still carries risks—resolution disputes, slippage, partial fills, fee changes, and settlement timing—so the bot frames opportunities rather than promising risk-free profits.
Try PolyArb and capture spreads faster
Start a PolyArb plan for $99/month to access 40ms latency, Telegram and Discord alerts, non-custodial execution, and a $7.62 minimum guaranteed edge per trade.
FAQ
- Is Kalshi legal?
- Kalshi operates as a CFTC-regulated exchange in the United States and enforces KYC/AML for U.S. participants; legality depends on your jurisdiction and local rules.
- Can I arbitrage between Kalshi and Polymarket?
- Cross-platform arbitrage is possible in theory but out of scope for PolyArb. Differences in custody, settlement timing, fees, and geography make cross-platform trades more complex and riskier than intra-Polymarket spreads.
- Do I need crypto to use Kalshi?
- No. Kalshi is fiat on-ramp friendly and uses traditional exchange rails, whereas Polymarket trades on Polygon using pUSD (wrapped USDC).
- What risks should I know before arbitraging?
- Common risks include resolution disputes (UMA on Polymarket), slippage and partial fills, fee changes, smart-contract risk on-chain, and settlement timing differences. Never assume any trade is unconditionally risk-free.