Who Profits from Prediction Markets? (opens in new tab)

In the high-stakes arena of prediction markets, a counterintuitive pattern emerges: retail traders who correctly pick winners more than half the time still lose money, while automated traders with coin-flip accuracy pocket nine-figure profits. Using 222 million prediction market tradeswith directly observable terminal payoffs, the paper "Who Profits from Prediction? Execution, Not Information" presents a clean answer to why it is so. The authors decompose trader returns into a directional com...