ProphetX vs Kalshi
Published 2026-08-07 · Last reviewed 2026-09-18
TL;DR
- ProphetX: CFTC-regulated sports prediction market — peer-to-peer, no house margin.
- Kalshi: The CFTC-regulated exchange — the safest on-ramp for US traders.
- For college markets specifically, ProphetX is the one most readers should open first — sports-only traders who want peer-to-peer pricing with no built-in house margin.
| ProphetXTrade $10, Get $20! | KalshiTrade $25 and Get $25! | |
|---|---|---|
| Regulation | CFTC-approved designated contract market (DCM) and clearing organization (DCO), June 2026 | CFTC-regulated designated contract market (DCM) |
| Trading fees | 2% commission on net winnings; nothing on losing or unmatched trades | ≈1–7% per trade (0.07 × contracts × price × (1 − price)); 0% at settlement |
| College markets | College football and college basketball game contracts and player markets — sports only | College football, March Madness, Heisman, admissions-adjacent policy markets |
| Apps | iOS, Android (mobile-first) | Web, iOS, Android |
| Deposit methods | Online banking (Aeropay), wire, crypto (Zero Hash) | ACH, debit card, wire ($10), crypto |
| Minimum deposit | $10 | $1 |
| Withdrawals | Instant to a few days via Aeropay; wires up to 72 hours | ACH free, 1–3 business days; wire $30 |
| US availability | 49 states + D.C. — Nevada excluded | 47 states + D.C. — Michigan, Nevada and Washington excluded |
| Best for | Sports-only traders who want peer-to-peer pricing with no built-in house margin | US traders who want a regulated venue and a real mobile app |
| Watch out for | No politics, admissions or culture markets; smaller markets can be slow to match | Fees peak near 50¢ — the closer to a coin flip, the more you pay |
| Sign up | Open ProphetX | Open Kalshi |
Fees: what a round trip actually costs
ProphetX charges 2% commission on net winnings; nothing on losing or unmatched trades. Kalshi charges ≈1–7% per trade (0.07 × contracts × price × (1 − price)); 0% at settlement. Headline rates mislead on small balances: on a $20 stake, a deposit or withdrawal fee usually outweighs the per-trade commission, so count the whole round trip before deciding.
College market depth
ProphetX lists college football and college basketball game contracts and player markets — sports only. Kalshi lists college football, march madness, heisman, admissions-adjacent policy markets. If you are here for college football or March Madness, depth matters more than a few basis points of fee difference — a market that does not exist cannot be traded at any price.
Access and apps
ProphetX runs on ios, android (mobile-first) and is 49 states + d.c. — nevada excluded. Kalshi runs on web, ios, android and is 47 states + d.c. — michigan, nevada and washington excluded.
The verdict
Pick ProphetX if: sports-only traders who want peer-to-peer pricing with no built-in house margin. Pick Kalshi if: us traders who want a regulated venue and a real mobile app. The honest answer for most students is to open the one that lists the markets you actually want and keep the other as a price check.
Frequently asked questions
Is ProphetX or Kalshi cheaper?
ProphetX: 2% commission on net winnings; nothing on losing or unmatched trades. Kalshi: ≈1–7% per trade (0.07 × contracts × price × (1 − price)); 0% at settlement. Compare on total round-trip cost — deposit fee, trading fee, and withdrawal fee together — not the headline rate.
Which has more college markets, ProphetX or Kalshi?
ProphetX lists college football and college basketball game contracts and player markets — sports only. Kalshi lists college football, march madness, heisman, admissions-adjacent policy markets.
Can I use both ProphetX and Kalshi?
Yes. Many traders keep accounts on both and route each trade to whichever venue prices that market better. Nothing stops you from claiming both sign-up offers if you qualify in your state.
Is ProphetX legal in my state?
49 states + D.C. — Nevada excluded. Kalshi: 47 states + d.c. — michigan, nevada and washington excluded. Check the state pages on this site for the current list before depositing.
Sources & further reading
- CFTC — Designated Contract Markets (DCMs)U.S. Commodity Futures Trading Commission
- Kalshi Rulebook and exchange rulesKalshi (KalshiEX LLC)
- Polymarket Terms of Use — eligibility and restrictionsPolymarket
Related
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