TOTAL VOLUME:
$152.4b
24H VOL:
$170,491,747
24H TRANSACTIONS:
2,927,407,401
OPEN INTEREST:
$1,802,409,459
448,418
Markets across
39,375
events
MATCHED EVENTS:
4,311
PLATFORM COVERAGE:
5
Polymarket:
38%
VS.
Kalshi:
62%
Platform Comparison
Side-by-side breakdowns of prediction market platforms: fees, markets, liquidity, and usability.
Best Prediction Market Apps (2026): Ranked and Compared
Kalshi now leads the industry on raw volume; Polymarket still has roughly 8x its unique trader base. Here's the whole roster, ranked and compared.
Jared Polites · Oct 12
Is My Money Safe on Prediction Markets? Custody Explained Across Polymarket, Kalshi, Limitless, Predict.Fun, and Opinion
Kalshi and Polymarket US hold your cash in CFTC-segregated accounts, a real protection, but not an insurance guarantee.
Jared Polites · Oct 1
Prediction Market AMMs vs Order Books: Why the Same Trade Moves Price Differently
A $500 trade barely moves one platform's price and swings another's by several cents. The difference is whether you're matched to another trader, or priced against a pool.
Jared Polites · Sep 30
Prediction Market Arbitrage: Why the Price Gap Rarely Pays Out
A Kalshi-Polymarket price gap looks like free money until fees, KYC delays, withdrawal friction, and mismatched settlement rules eat most of it before the trade clears.
Jared Polites · Sep 29
Is Polymarket Legit? What the Data and the Regulatory Record Actually Show (2026)
Yes, Polymarket is a legitimate, well-funded exchange that pays out onchain. Here's the full record, good and bad.
Jared Polites · Sep 25
Prediction Market Liquidity Comparison: Why Some Platforms Are Structurally Deeper
Every platform can quote a price. Not all of them can back it once real size hits the book. Here's what actually determines whether liquidity holds, platform by platform.
Jared Polites · Sep 11
Kalshi Fees vs Polymarket Fees: How Prediction Market Fees Actually Work
Kalshi, Polymarket, Predict.Fun, and Opinion now all charge takers a fee that peaks on a 50-cent contract and fades toward the extremes.
Jared Polites · Aug 18
Kalshi vs Polymarket: Which Prediction Market Is Right for You?
Kalshi is CFTC-regulated and dollar-funded. Polymarket runs on USDC with deeper global liquidity and now has its own regulated US arm too. Compare live.
Jared Polites · Jul 30
Is Kalshi Legit? A Data-Backed Review (2026)
Yes, Kalshi is CFTC-regulated and has been since 2020. Here's what that actually protects, what the fees really cost, what deposits and withdrawals are like, and the state-by-state legal fight.
Jared Polites · Jul 27