“splitting a market into twenty contracts leaves most of them untradeable”
Analyzes 36,777 Polymarket events to understand what happens when continuous questions are split into dozens of independent binary contracts. Volume follows an extreme Pareto distribution: the top 3 markets capture over 75% of trading activity regardless of event size, leaving a large fraction as untradeable ghost markets. The $0.01 tick size compounds the problem, creating a rounding tax that makes low-probability contracts structurally imprecise.
Some technical background helpful
Platforms mentioned: Polymarket