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Prediction Markets
Markets where prices work like probabilities. We review fees, liquidity and how each platform settles outcomes.
Our top Prediction Markets picks
#1
Kalshi The biggest regulated US prediction market, with the widest choice of contracts
US: trade $25, get a $25+ trading credit via partner codes (reported)
9.0 Read review
Visit Kalshi #2
Polymarket The world's best-known prediction market, now with a CFTC-regulated US app
US app: deposit offers via partner codes (e.g. deposit $10, get $25 trading credit)
8.5 Read review
Visit Polymarket #3
Novig No fee on pre-game straight trades — the cheapest way to back a team
Deposit offers via partner codes (e.g. deposit $10, get $50 in trade credits)
8.4 Read review
Visit Novig #4
ForecastEx (Interactive Brokers) Forecast contracts from a giant global broker — for investors, not bettors
No sign-up bonus; incentive coupon on open positions
8.3 Read review
Visit ForecastEx (Interactive Brokers) Free tools · Contract calculator · Edge finder · Price ↔ odds converter · Arbitrage calculator · Fee calculator · Annualised return calculator · Multi-outcome market calculator · Prediction market vs sportsbook · Prediction market tax calculator
Open the tools → The calculator desk
Turn prices into probabilities — and check if you have an edge.
All Prediction Markets reviews
10 sites · A–Z Crypto.com Predict 7.9 DraftKings Predictions 8.0 FanDuel Predicts 8.2 ForecastEx (Interactive Brokers) 8.3 Kalshi 9.0 Novig 8.4 Polymarket 8.5 PredictIt 6.8 ProphetX 7.7 Robinhood Prediction Markets 8.3
Compare all Prediction Markets sites → How we rate Prediction Markets
1
Fees
Trading, deposit and withdrawal costs.
2
Liquidity
Spreads on popular and niche markets.
3
Our full methodology → Settlement
Clear, timely resolution rules and sources.
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Prediction Markets guides
Evergreen explainers, kept up to date as rules and products change.
01 / 10
01 Are Prediction Markets Legal? CFTC Rules, State Lawsuits and the Rest of the World Federally regulated, fought over by states, and banned or grey in much of the world. Here's the map in October 2026. 7 min read · Updated 23 Oct 02 How to Use Polymarket From the US: The Legal Way, Step by Step After years of blocking Americans, Polymarket now has a regulated US app. Here's how to get started. 3 min read · Updated 23 Oct 03 Prediction Market Arbitrage: How It Works and Why It's Harder Than It Looks Buy Yes here, No there, collect a guaranteed profit. In theory. Here's what the YouTube videos leave out. 4 min read · Updated 23 Oct 04 Prediction Market Fees Compared: Kalshi, Polymarket, Robinhood and More On a one-dollar contract, a cent or two is a big deal. Here's exactly what each platform charges in October 2026. 4 min read · Updated 23 Oct 05 Prediction Market Liquidity and Slippage: Why Thin Markets Cost You Money A price on screen is only a promise if someone is willing to trade at it. 3 min read · Updated 9 Oct 06 Order Books, Limit Orders and Spreads: How to Place Smarter Prediction Market Trades The order book is the most useful screen on any prediction market — and the one most beginners never open. 3 min read · Updated 9 Oct 07 Implied Probability and Calibration: What Prediction Market Prices Really Mean A 70¢ price means 70%. Mostly. Here's how to read prices like a pro — and when not to trust them. 3 min read · Updated 9 Oct 08 How Prediction Markets Settle: Resolution Rules, Sources and Disputes Being right about the world isn't enough. You also have to be right about the wording. 3 min read · Updated 9 Oct 09 Taxes on Prediction Market Winnings: What US Traders Need to Know The IRS hasn't said exactly how event contracts are taxed. That doesn't mean they're tax-free. 5 min read · Updated 23 Oct 10 Prediction Markets vs Sportsbooks: Prices, Fees, Limits and Legality Same game, same team, very different deal. Here's what really changes when you swap a betslip for an event contract. 4 min read · Updated 9 Oct
Prediction Markets news & blog
News19 Oct Novig Reports Download and Deposit Growth After Sydney Sweeney Campaign Big percentages from the company. They measure attention, not lasting customers.
News19 Oct Underdog Challenges Tennessee Enforcement in Federal Court Another prediction market takes the federal versus state fight to court. A filing is not a ruling. News13 Oct Study for Tribal Gaming Puts Prediction Market Risk at Up to $39bn Big numbers, but they rest on big assumptions. Here's what the four scenarios actually say — and who paid for them. News10 Oct CFTC Proposes Defining Event Contracts as Swaps A few words in a definition could decide who gets to regulate prediction markets: Washington or the states. View all Prediction Markets articles →
Guide · 21 Oct Gambling Winnings Tax Calculator Enter a year of winnings and losses, pick your tax bracket and see what you owe, and why a break-even year can still cost you. Guide · 10 Oct Bankroll Basics for Every Kind of Player One budget, many games. Miss Quackles' rules for keeping gambling a hobby. News · 10 Oct Gambling Advertising Rules: What's Changing Fewer push notifications, no AI-tailored bonuses, stricter wording. The rules around gambling ads are changing fast.