Kalshi
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Start hereWhat is Kalshi and how does it work: Event contracts on a CFTC-regulated exchange
Kalshi is a federally regulated U.S. derivatives exchange where traders buy and sell yes-or-no event contracts that settle at $1 or $0.
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Learn about Kalshi

Kalshi fees explained: trading commissions, maker-taker pricing, and funding costs
Kalshi’s core cost is a per-contract fee that peaks at 1.75¢ at 50¢, plus separate deposit and withdrawal charges that depend on payment method.

Kalshi election markets explained: how prices, liquidity, and settlement create “odds”
Kalshi lists CFTC-regulated election event contracts that trade from $0 to $1 and settle at $1 or $0, so the price can be read as a probability only when the market is liquid and the rules are clear.