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Kalshi: Trade $25 and Get $25! · code RANKPREDICTS · 21+ · Terms apply
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We earn a commission from the platforms in the first group. Within each group, platforms are sorted by their score. How we score: Methodology.
🏆 Editor's Choice
CFTCBest for Market Variety
92/100
Kalshi: Trade $25 and Get $25! · 21+ · Terms apply
Read full Kalshi reviewBest Sports-First Exchange
CFTC87/100
ProphetX: Trade $50, Earn $75! · 21+ · Terms apply
Read full ProphetX reviewBest for Politics and World Events
CFTC85/100
Polymarket US: Deposit $10 get a $25 Trading Bonus! · 21+ · Terms apply
Read full Polymarket reviewBest Crypto.com Pick
CFTC78/100
OG: Trade $25 Get $50 in Rewards! (New users only) · 21+ · Terms apply
Read full OG.com review65/100
Rebet: Get a 100% purchase match up to $100! · 21+ · Terms apply
Read full ReBet reviewBeing re-tested
Novig: Deposit $10 Get $50 in Trade Credits! · 21+ · Terms apply
Read full Novig review87/100
85/100
83/100
80/100
75/100
ProphetX: Trade $50, Earn $75! · 21+ · Terms apply
Read full Sleeper Markets review68/100
ProphetX: Trade $50, Earn $75! · 21+ · Terms apply
Read full Chalkboard reviewSports pick · Trade $50, get $75
Trade $50, Earn $75! Use code RANKPREDICTS at signup. Offer valid in 49 states + D.C. (not Nevada).
ProphetX · Trade $50, Earn $75!
RANKPREDICTSOffer valid in 49 states + D.C.
CFTC-regulated · 21+ · Sponsored
New users only. T&Cs apply. ProphetX's minimum age is 18 (or the local age of majority if higher); we recommend 21+. Not available in Nevada. Trading involves risk.
Editor's pick · Trade $25, get $25
Trade $25 in event contracts and get $25 in credit. Use code RANKPREDICTS at signup.
Kalshi · Trade $25 and Get $25!
RANKPREDICTSOffer valid in 47 states + D.C.
CFTC-regulated · 21+ · Sponsored
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
One code for every partner. Step-by-step guides, terms and where each offer works.
21+ · New users only · Terms apply
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Sports, politics, crypto & more.
Featured Guides
The deepest, most-cited content on the site.
Guides
Expected value, position sizing, five sources of genuine edge, and the strategies professional traders use. A realistic finance-first guide.
10 min read
Guides
Kalshi charges 3.5% on even-money contracts. Robinhood charges $0.02 per contract. DraftKings embeds costs in the spread. Here is exactly what you pay on every major US platform — with real math.
8 min read
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The most comprehensive Kalshi review on the web. Fees, markets, user experience, regulation, pros and cons — everything before you deposit. By Catie Di Stefano.
12 min read
Strategy, deep-dives, and platform analysis.
Guides · May 19, 2026
Comparisons · August 25, 2026
Legal · April 10, 2026
Our coverage extends across vertical hubs in the AffiliatePredictions network — including 2026 World Cup market guide (opens in a new tab), our year-round live soccer prediction markets (opens in a new tab) desk, and a hub for markets that price the university (opens in a new tab).
Quick answers to the questions traders ask us most.
Kalshi is currently the highest-scored US prediction market platform on PredictionRanks, at 92/100. It is a CFTC-regulated Designated Contract Market with a wide catalog of macro, political, sports and culture contracts, low fees, and a $10 minimum deposit. ProphetX and Robinhood (87/100) and Polymarket US and DraftKings Predictions (85/100) follow.
Available to eligible residents (as of October 3, 2026); check current state rules. CFTC-regulated platforms operate as federal Designated Contract Markets, each available in most states (Kalshi: 47 states plus D.C.; Polymarket US: 49 states plus D.C.). Five states (Wisconsin, New Jersey, Maryland, Massachusetts, Nevada) have challenged sports event contracts, and the CFTC has counter-sued. The federal preemption question is expected to reach the Supreme Court in 2027–2028.
Prediction market contracts are CFTC-regulated derivatives that resolve to $1 (YES) or $0 (NO). Prices equal the market's probability estimate, with no bookmaker margin. Sports betting is regulated state-by-state and uses bookmaker odds with a built-in vig.
Sports outcomes, US and international politics, Fed rate decisions, CPI and macro data, crypto price levels, weather, climate events, and entertainment. Kalshi has the broadest catalog; Polymarket leads on politics; Robinhood focuses on macro and headlines.
Pick a CFTC-regulated platform, complete KYC, deposit (Kalshi accepts deposits from $10), then buy YES or NO contracts at the current price. Hold to resolution or sell to exit early.
Breaking news and regulatory developments.
Election contracts don't all pay out on election night. Here is how Kalshi and Polymarket US settle 2026 midterm markets, and what recounts and runoffs mean for your money.
Deposit $10, get a $25 trading bonus with code RANKPREDICTS.
Recap: Spain won the 2026 World Cup, beating Argentina 1-0 after extra time in the final on July 19, 2026 (Ferran Torres scored). Kylian Mbappé won the Golden Boot with 10 goals.
Recap: Spain won the 2026 World Cup, beating Argentina 1-0 after extra time in the final on July 19, 2026 (Ferran Torres scored). Kylian Mbappé won the Golden Boot with 10 goals.
Recap: Kylian Mbappé won the 2026 World Cup Golden Boot with 10 goals, becoming the first player to win it twice. Lionel Messi was second with 8. Spain won the final 1-0 against Argentina after extra time.
On October 9 the CFTC said sportsbook and casino bets are not swaps and proposed defining event contracts as swaps. Neither rule is in force yet. What it means for traders and platforms.
One status word per platform for every state and D.C., the three states where a court order blocks Kalshi sports contracts, the rows we are watching and the court dates that could change the map.
Profits are taxable, but there's no IRS guidance on event contracts yet. The three treatments, what platforms send you, and what to keep.
Status as of October 3, 2026 (re-checked October 14): Kalshi sports contracts blocked by court order; Polymarket US, ProphetX and Novig not offered; OG sports contracts not offered. Dated sources.
Status as of October 3, 2026: Available, dispute pending. What the courts and the state have done, with dated sources.
Status as of October 3, 2026: Kalshi, Polymarket US and ProphetX available, dispute pending; OG and Novig not offered. What the courts and the state have done, with dated sources.
Status as of October 19, 2026: Kalshi, Polymarket US, ProphetX and Novig available, dispute pending; OG not offered. What the courts and the state have done, with dated sources.
Status as of October 3, 2026: Kalshi, Polymarket US, ProphetX and Novig available, dispute pending; OG not offered. What the courts and the state have done, with dated sources.
RANKPREDICTS · 47 states + D.C. · 21+RANKPREDICTS · 48 states + D.C. · 21+RANKPREDICTS · 42 states + D.C. · 21+RANKPREDICTS · 49 states + D.C. · 21+RANKPREDICTS · 47 states + D.C. · 21+RANKPREDICTS · 38 states + D.C. · 21+21+. Gambling problem? Call 1-800-GAMBLER.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.