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The investors profiting from prediction markets? The top 1%, of course

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The investors profiting from prediction markets? The top 1%, of course

A working paper analyzing 1.4 million Polymarket users, 70 million trades and US$20 billion in volume found that 71% of users lose money, while the top 1% capture about 84% of all gains and the top 0.1% nearly 60%. The study suggests prediction markets are efficient overall, but most retail traders are at a structural disadvantage versus sophisticated users and market makers. The article also highlights growing regulatory scrutiny in the U.S. and early, limited rollout of forecast contracts in Canada.

Analysis

The key investable takeaway is not that prediction markets are inefficient; it is that they are efficient enough to punish unsophisticated flow while still creating a durable edge for liquidity-providing intermediaries and data/analytics layers. That shifts the economics toward the picks-and-shovels of the ecosystem: platforms, market makers, and any broker/fintech that can internalize order flow, monetize spreads, or package probability data for institutional clients. Retail participation can still grow, but the average customer experience will be negative, which typically slows cohort retention and raises customer-acquisition costs over a 6-18 month horizon. The second-order risk is regulatory backlash. If retail losses become the headline, lawmakers will increasingly frame these products as quasi-gambling, which raises the probability of tighter disclosures, leverage/position-size limits, or product carve-outs by event type. That is a real catalyst over the next 1-2 quarters in the U.S. and could meaningfully delay Canadian adoption beyond the current pilot phase, especially for broader consumer-finance platforms that do not want reputational contamination. For listed exposures, the more interesting trade is not on the event-contract providers themselves, but on financial intermediaries that can benefit from higher engagement without carrying direct event-risk. For Canadian banks, this is a mild positive for fee-based retail engagement if forecast contracts are embedded inside existing brokerage rails, but it is not enough to move earnings in the near term. The larger opportunity is to fade the idea that prediction markets are a new retail alpha source: structurally, they should compress over time into a small number of sophisticated accounts extracting value from a persistent retail audience, until regulation or a major drawdown changes behavior.