The full list of prediction market and event contract platforms we track, with how each one works, how it is funded and regulated, and where it is genuinely available. We profile, we do not rank a winner.
This is the directory of the prediction market platforms we cover. Each has a full profile explaining how it works, how it handles your money, who regulates it where that applies, and where it is available, with dated legality and fee notes. It is general information, not advice.
This is the index of the prediction market platforms we track. Each one carries a full profile with how it works, how it is funded and regulated, the fees where they are published, and where it is genuinely available. We do not rank a single winner, because the right venue depends on where you live and what you are eligible to use.
The platform universe is small and it changes quickly. Some of these venues are regulated in the United States as designated contract markets overseen by the Commodity Futures Trading Commission, the CFTC. Others are onchain crypto protocols that settle in stablecoins and sit outside that framework. A few run entirely on play money for forecasting practice and never touch cash at all. These are genuinely different products, with different custody arrangements, different risks, and different legal standing, so read each profile on its own terms.
Every profile states what the platform is, how it handles your money, who regulates it where that applies, and what it costs, with an as of date on the legality and fee claims and a visible last reviewed date. Where a legal position is contested or unclear, we say so plainly rather than guessing. We never tell you which platform to pick or which outcome to back. We give you the information and leave the decision, and the final check of the current rules, to you.
Availability is local. Whether a platform is open to you depends on your country and, in the United States, often your state. A platform that is fully available in one place can be blocked or contested in another. For that reason we only point you toward platforms that are genuinely legal and available where you are, and only after you have read the information first.
Because regulation in this category moves fast, the safest habit is to check the legality picture before you open any account. Our legality pages explain the framework in plain language, name the regulator, and flag the contested points. If you are in the United States, start with the country overview and then your state, since sports event contracts in particular have faced state by state friction through 2025 and 2026.
Read the profiles, check the legality page for your region, then decide for yourself. We do not sell placements and we do not earn from telling you where to go.
Get The Forecast, our plain language brief on platform changes and shifting legality. One email, no tips, no hype.
Prediction markets and event contracts can lose you money. Trade only what you can afford to lose, never to chase a loss, and never with borrowed money. If participating stops feeling like a free choice, step back. In the United States you can call or text 1 800 GAMBLER or visit ncpgambling.org for free, confidential support. A clear regulator does not make any market safe to over trade.
No. The right venue depends on where you live, what you want to trade, and what you are eligible to use. We profile each platform plainly and let you decide, rather than crowning a winner.
No. Some are regulated United States exchanges, some are onchain crypto protocols outside that framework, and some are play money only. Legality also varies by state. Check the profile and the legality page for your region before acting.
On a real money venue you risk cash and a contract settles to one dollar or to nothing. On a play money platform you trade with site points or a reputation score and there is no cash payout. Each profile states which model the platform uses.
The Index 100 is an independent informational resource and is not affiliated with any platform. Where a platform is genuinely legal and available to you, a referral link may appear after the information, never before it, and never in a region where the platform is not available.
Regulation, fees, and availability change frequently, so each page carries an as of date and a last reviewed date. We re review the platform and legality pages on a regular cycle and refresh anything that has moved.