KALSHI Prediction: a Trader’S Guide to the Platform
Kalshi is a CFTC-regulated platform that offers binary event contracts. Traders place YES or NO bets on real-world outcomes, with settlements issued in USD. The Kalshi prediction market structure means each contract settles to $1.00 for a correct prediction and $0.00 otherwise. This guide explains how the Kalshi platform works, why arbitrage opportunities exist within a single market, and how KalshiArb helps you identify and act on those edges.
How Kalshi Prediction Markets Work on the Platform
Kalshi operates as a Designated Contract Market for event contracts. Every market has a YES and a NO side, and the best-ask prices across both sides should sum to $1.00 at fair value. If YES is priced at 42¢ and NO at 58¢, you can theoretically buy both and lock in a risk-defined edge, minus the per-contract fee. Settlement is USD-based and tied to a written resolution rule sourced from official data or rulings, not an external oracle. Understanding this structure is essential for evaluating internal arbitrage opportunities within a single market.
Intra-M Kalshi Arbitrage: The Edge Within a Single Market
The core arbitrage idea on Kalshi is the intra-market edge: when bestAsk(YES) + bestAsk(NO) is less than $1.00, buying both YES and NO legs creates a guaranteed small profit margin. This edge exists because the two sides must align to sum to $1.00 at fair value, and discrepancies can appear due to liquidity, timing, and market dynamics. Traders need to manage fees, slippage, and potential settlement timing risk, but the mechanism is straightforward: lock in the spread by owning both sides before prices adjust.
Combinatorial Arbitrage Across Event Children
Under event tickers that group multiple child markets, the sum of the YES prices for all child contracts may be less than $1.00. In these cases, buying a complete set of child YES contracts can lock in a spread across the family of markets. This approach requires careful tracking of related markets, as resolution rules and data sources must remain consistent across the group. KalshiArb’s tooling focuses on detecting these multi-market edges efficiently.
Pricing, Fees, and the KalshiArb Advantage
Kalshi charges a per-contract fee that reduces your theoretical edge, so calculating the net profit after fees matters. Our platform emphasizes real-time edge discovery and fast reaction times, targeting sub-100ms latency for alerts. KalshiArb provides non-custodial tooling, meaning you supply your own Kalshi API keys and execute trades directly on Kalshi. The pricing model we advertise reflects the value of fast, reliable edge detection rather than guaranteed returns.
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FAQ
- What is Kalshi’s settlement model for YES/NO contracts?
- Yes/No contracts settle to $1.00 for the winning side and $0.00 for the losing side, based on a written resolution rule sourced from official data.
- Are Kalshi arbitrage opportunities risk-free?
- No. All edge strategies involve risks like fees, slippage, partial fills, and settlement timing. Arbitrage detects an edge present in price, not a guaranteed profit.
- What is KalshiArb, and how does it relate to Kalshi?
- KalshiArb is an independent scanner and AI agent for intra-Kalshi arbitrage. It is non-custodial and uses your Kalshi API key to identify and act on edges in Kalshi markets.
- Do I need VPN or special access to use Kalshi in the US?
- Kalshi operates as a US-legal, regulated platform. Always comply with Kalshi’s terms and state eligibility; using VPNs to bypass restrictions is not advised.