World Economy

Wall Street Entry Into Prediction Markets Narrows Profit Opportunities for Traders

Institutional capital flowing into prediction markets is squeezing returns for individual traders as competition intensifies and pricing becomes more efficient. Academic research shows just 3% of accounts captured roughly 27% of dollar profits by quickly reacting to news and exploiting pricing discrepancies across related contracts. As more professional participants enter the space, those edges are eroding rapidly. Spreads are tightening and arbitrage opportunities are disappearing faster than traders can exploit them. Yale economist Theis Jensen, co-author of a paper analyzing $13 billion in market activity, predicts the proportion of traders with an edge could shrink below 1% as competition increases. Bank of America analysts note that traditional arbitrage strategies relying on wide spreads face particular headwinds. However, smaller traders maintaining specialized expertise in niche market segments may still find isolated opportunities.