Opinion Markets Explained: What They Are and How to Trade Them

Opinion is an emerging prediction market platform that's gaining traction. Here's what you need to know about trading on Opinion and how it fits into the prediction market landscape.

What Is Opinion?

Opinion is a prediction market platform where users trade on the outcomes of real-world events. Similar to Polymarket and Kalshi, contracts trade between $0 and $1 based on the market's assessment of probability.

How Opinion Markets Work

• Event selection: Browse available markets on politics, economics, sports, tech, and more
• Binary contracts: Buy YES or NO shares representing your prediction
• Price = probability: A 65¢ YES share implies a 65% probability
• Resolution: Markets resolve based on verifiable real-world outcomes

Opinion vs Polymarket vs Kalshi

• Market variety: Each platform has different market offerings — check all three for the best opportunities
• Fees: Compare fee structures before choosing where to trade
• Liquidity: Polymarket generally has the deepest liquidity, but Opinion markets can offer value in less-covered events
• Accessibility: Different platforms have different geographic restrictions

Finding Edge on Opinion Markets

Newer platforms like Opinion often have less efficient pricing. This means more mispriced markets and more opportunities for informed traders. If you have expertise in specific topics, smaller platforms can be gold mines for finding value.

Strategies for Opinion Trading

• Cross-reference prices with Polymarket and Kalshi for arbitrage opportunities
• Focus on markets where you have genuine knowledge or research capability
• Start small and build your track record before sizing up
• Use AI analysis tools to evaluate whether Opinion market prices reflect fair value

The Multi-Platform Advantage

The smartest prediction market traders don't limit themselves to one platform. By monitoring Opinion alongside Polymarket and Kalshi, you can find the best prices and exploit discrepancies. Polifly helps you analyze markets across platforms to find the best opportunities.

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