Kalshi review: how it compares to Polymarket & PolyArb
Kalshi is a regulated event-exchange focused on binary contracts, offering a US-based trading venue with its own fees, matching rules, and user flow. If you’re a trader or crypto-native comparing Kalshi to Polymarket, the core differences are regulation, product distribution, and settlement rails. This review compares those differences and then explains where PolyArb — a Polymarket arbitrage bot — fits as a tool for traders seeking intra-Polymarket edge.
What Kalshi is and how it differs
Kalshi is a CFTC-cleared platform built for regulated event contracts in the U.S.; it targets users who need a regulated on-ramp and KYC. Its product scope and user protections differ from decentralized venues like Polymarket, which runs on Polygon and uses UMA for resolution. Kalshi’s regulatory posture shapes instrument availability, custody, and onboarding timelines, whereas Polymarket uses pUSD on Polygon, gasless relayer flows, and Gnosis CTF tokens.
Trading experience and fees
Kalshi emphasizes compliance and a centralized UX; fees and matching behaviour are set by its platform rules. Polymarket uses a Central Limit Order Book (CLOB) on Polygon with variable taker fees (0–1.8% by category) and zero maker fees. That difference matters for latency-sensitive strategies: decentralized venues can offer faster settlement and different fee arbitrage opportunities compared with regulated venues that prioritize order integrity and KYC.
Where PolyArb fits for arbitrage traders
PolyArb is a tool for intra-Polymarket arbitrage on Polymarket markets. It’s non-custodial, available today, and advertised at $99/month with 40ms latency versus ~800ms for free bots, a $7.62 minimum guaranteed edge per trade, and Telegram + Discord alerts. PolyArb automates spotting and executing intra-market edges where combined best-asks sum below $1.00, but users must still manage slippage, settlement timing, and resolution risk.
Risks and practical considerations
Arbitrage spreads are mathematical in the book, but not without real risks: UMA disputes or delayed resolution can slow or change settlement, partial fills and tick-size constraints can reduce realized edge, and fees or geo-restrictions can affect execution. Polymarket geo-blocks certain countries and prohibits VPN evasion. Always factor those operational risks before trading or subscribing to automation tools.
Start capturing intra-Polymarket edge today.
Try PolyArb live: non-custodial automation, 40ms latency, Telegram + Discord alerts, $99/month with a $7.62 minimum guaranteed edge.
FAQ
- Is Kalshi safer than Polymarket?
- Kalshi is regulated and requires KYC, which provides different legal protections than Polymarket’s decentralized model. Safety depends on which risks (regulatory vs. smart-contract/settlement) matter more to you.
- Can PolyArb trade on Kalshi?
- PolyArb is built for intra-Polymarket arbitrage and operates on Polymarket markets using pUSD and the CLOB; it does not route orders to Kalshi.
- What is the $7.62 minimum guaranteed edge?
- The $7.62 minimum guaranteed edge is a marketed PolyArb claim describing the minimum per-trade edge the service targets; users should read PolyArb’s terms and factor in fees, fills, and resolution risks.