Market Irregularity Tracker

Prediction Market Microstructure Analysis · Based on 72.1M Trades

Simulation Active
Trades Analyzed 72,100,000
Volume $18.26B
Anomaly detected: Entertainment category showing 4.79pp maker-taker gap — 28x Finance baseline
Taker Avg Return -1.12% ▼ Losing Population
Maker Avg Return +1.12% ▲ Extracting Value
Optimism Tax 1.85pp YES vs NO gap
Longshot Mispricing -57% At 1¢ contracts
Max Category Gap 7.32pp World Events

Longshot Bias Calibration Curve

Implied probability vs actual win rate — deviation from the 45° line reveals mispricing

Maker-Taker Return Decomposition

Excess return by price level — the structural wealth transfer from takers to makers

Category Efficiency Spectrum

Maker-taker gap by category — wider gap = more extraction

YES / NO Asymmetry

Expected value divergence between YES and NO contracts at equivalent prices

Temporal Evolution of Wealth Transfer

Quarterly maker-taker gap with volume overlay — the professionalization of liquidity

Post-election inflection: Q4 2024

Live Anomaly Detection Feed

Simulated real-time irregularity scanner across all categories

0 anomalies detected

The Optimism Tax: Deep Dive

Takers disproportionately buy YES at longshot prices, paying a structural premium for affirmative outcomes

-1.02% YES Buyer Return

Dollar-weighted excess return for all YES contract buyers

+0.83% NO Buyer Return

Dollar-weighted excess return for all NO contract buyers

69 / 99 Price Levels NO Wins

NO contracts outperform YES at 69 of 99 price levels

64pp Max EV Divergence

At 1¢: YES EV = -41%, NO EV = +23% — a 64pp gap

Taker Flow Composition: YES vs NO Volume Share

At longshot prices (1-10¢), takers account for 41-47% of YES volume vs only 20-24% for makers

Volume Distribution by Category

Sports dominates with 72% of all notional volume