Step-by-step explainers for reading odds, choosing a platform and managing risk.
Kalshi, Polymarket, Robinhood, Interactive Brokers, DraftKings, FanDuel, Crypto.com, PredictIt and more, ranked and compared: who runs its own exchange, how much volume each has, what a trade really costs, and which one fits what you want to trade. With charts.
Kalshi promo codes advertised in October 2026 pay $25 to $60 in trading credit once you deposit $10 and trade $25, and some promise a random prize of up to $2,000. What each offer really requires, how to enter a code, what the credit is worth and which states are left out.
Kalshi charges takers 7% × price × (1 − price) per contract, rounded up to the cent: at most 1.75¢ at 50¢. Makers pay a quarter of that on some markets, settlement is free, bank transfers cost nothing and cards about 2%. A fee table, worked examples and how to cut costs.
Texans can legally trade on Polymarket through Polymarket US, the CFTC-regulated app, sports contracts included, even though sports betting is illegal in Texas. The global site is off-limits. What you can trade, why Texas has not acted, the push in the state Senate, taxes and how to sign up.
Californians can trade on Polymarket through the CFTC-regulated Polymarket US app, sports included, although sports betting is illegal in the state. The global site is off-limits. What you can trade, the tribes’ court win against Kalshi and what it could mean for Polymarket, Newsom’s insider-trading order and taxes.
Fanatics Markets is a CFTC-regulated, sports-first prediction market from the Fanatics group, open to adults 21+ in 22 states including Texas, California and Florida. How it works, its fees (up to 2¢ a contract each way), the 14-day trade match worth up to $150, its limits and how it compares with Kalshi and Polymarket.
Polymarket US promo codes advertised in October 2026 promise about $25 in trading credit after a $10 deposit. What the codes really give you, how to enter one, the refer-a-friend offer, why the global site has no sign-up bonus, and the scams to avoid.
An honest Kalshi review for October 2026: how the CFTC-regulated exchange works, what it costs (up to 1.75¢ a contract), the 3.50% APY, deposits and withdrawals, the app, the state fights over sports contracts, the mention-market controversies and who it suits.
Polymarket charges only takers, with a fee that peaks at 50¢: from $1.00 per 100 shares in politics to $1.75 in crypto, and nothing on geopolitics. Polymarket US moved to a 0.0695 rate on 19 October 2026. Every fee, worked examples, rebates and how to avoid paying.
Polymarket pays traders in three ways besides winning trades: daily liquidity rewards for resting limit orders near the midpoint, 3.25% annualised holding rewards on 18 long-dated markets, and maker rebates funded by taker fees. How each works, the formulas, worked examples and what they are really worth.
