What Is Kalshi? A Complete Guide

Kalshi, in one paragraph

Kalshi is a US prediction exchange where traders buy and sell event contracts on the outcome of real-world questions — economic data, elections, weather, markets, and more. It is the first CFTC-regulated venue of its kind.

Contracts are cash-settled: each contract settles at $1 if the event resolves in your favor and $0 otherwise. No crypto is involved — accounts run on fiat rails.

What CFTC regulation means

Kalshi operates under oversight from the CFTC (US Commodity Futures Trading Commission), which means its markets, rules, and operations sit inside a formal regulatory framework.

For traders, the practical difference is structural: the venue has defined listing requirements, cash settlement, and regulated market operations — distinct from a permissionless crypto venue.

How Kalshi differs from Polymarket

How Kalshi settlement works

Every Kalshi market has a defined event with a defined outcome. When the event resolves, each contract settles in cash: $1 if the outcome matched your position, $0 if it didn't.

Because settlement is binary and cash-denominated, prices behave like probabilities — exactly like Polymarket's YES/NO shares, which is what makes the two venues comparable in the first place.

Where Kalshi and Polymarket overlap

A large share of real-world events — Fed decisions, crypto up-or-down, elections — are listed on both venues. That overlap is the source of venue divergence: separate books, separate liquidity, separate participants, so the same event can trade at different prices.

Where the markets overlap is exactly where cross-venue signals live.

How Vantex uses Kalshi data

Kalshi is one of the two venues in Vantex's coverage. Its data feeds into the 180+ matched pairs Vantex tracks across venues — and the price differences between Kalshi and Polymarket become divergence signals in the live feed.

Vantex delivers the signal; you decide execution and timing.