You’ve decided to explore prediction markets. Now you face a confusing array of platform choices: Polymarket and Kalshi. Each has a different structure, different strengths, different regulatory status, and different user experience. Choosing where to start matters — picking the wrong platform for your goals can be frustrating and expensive. Here’s a clear guide to the major platforms and which type of trader each suits best.
Kalshi: Best for US Traders Who Want Regulatory Safety
Kalshi is the only CFTC-regulated prediction market platform, making it the safest legal choice for US-based traders. Its market selection covers politics, finance, economics, and sports. The platform interface is clean and relatively intuitive for newcomers.
Kalshi’s regulated status means resolution disputes have a formal arbitration process, and your funds are held with regulated financial infrastructure. For traders who are new to prediction markets and want to start with real money without legal ambiguity, Kalshi is the recommended starting point in the US.
Limitations: smaller market selection than Polymarket, and some events have lower liquidity than their Polymarket equivalents. Fees are clearly structured but can be higher than Polymarket on high-liquidity markets.
Polymarket: Best for Global Traders and Market Breadth
Polymarket has the largest selection of active prediction markets and the highest aggregate notional values globally. For non-US traders, it is typically the primary platform. Its blockchain-based infrastructure (Polygon network) means funds are in your crypto wallet rather than a centralized exchange — reducing platform custodial risk.
Polymarket’s community governance model allows rapid market creation, so emerging events appear here first. The user interface is more complex than Kalshi’s, reflecting its crypto-native origins.
US users technically cannot access Polymarket, though enforcement is limited. Non-US users worldwide should consider Polymarket as their primary platform given its liquidity and market breadth.
Start with One, Then Compare Both
Many traders start with one platform and stick to it. This is fine for building familiarity, but it leaves a consistent edge untapped. The same event priced at 47% on Polymarket and 55% on Kalshi is a real discrepancy — and you can only see it if you are watching both.
Prediction Terminal is designed precisely for this: showing Polymarket and Kalshi odds side by side in real time. As your trading sophistication grows, this cross-platform view becomes one of your most reliable tools for identifying where pricing is inefficient.
How Prediction Terminal Bridges Both Platforms
Rather than manually switching between Polymarket and Kalshi, Prediction Terminal shows both platforms’ odds and notional values in one dashboard. You get the combined information advantage without the friction of managing separate tabs or accounts.
For beginners, this means you can compare how the two platforms price the same events before committing to either. For experienced traders, it surfaces cross-platform discrepancies — the pricing gaps that are the most reliable source of ongoing edge in prediction market trading.
Start exploring prediction markets on Prediction Terminal.
Frequently Asked Questions
Which prediction market platform should a beginner start with?
US-based beginners should start with Kalshi — it is CFTC-regulated, legally unambiguous, and has a cleaner interface. Non-US beginners should consider Polymarket for its broader market selection and higher global liquidity. Both types of traders benefit from eventually using Prediction Terminal to compare both platforms simultaneously.
Is Polymarket legal for US users?
Polymarket technically restricts access to US users due to regulatory concerns. US-based traders accessing it do so at their own legal risk. Kalshi is the only major prediction market platform with full CFTC regulatory clearance for US participants.
What is the fastest way to find pricing discrepancies between Polymarket and Kalshi?
Use Prediction Terminal, which displays odds and notional values from both platforms side by side for the same events in real time. A divergence of 5 percentage points or more between platforms is generally worth investigating as a potential trading opportunity.