Polymarket saw $600 million in election trades after the elections were over

Prediction markets like Polymarket are often marketed as accurate barometers of public sentiment, yet recent data reveals significant anomalies. Despite the platform's reputation as a 'truth machine,' a notable case involving Ethiopian federal elections highlights a disconnect between trading volume and actual outcomes. While Prime Minister Abiy Ahmed secured a landslide victory, prediction markets saw over $600 million in trading volume, with the vast majority of bets placed on losing candidates. Specifically, over $41 million was traded on his chief of staff, while only $173,000 was wagered on the actual winner. This pattern contradicts the standard expectation that trading volume correlates with the probability of an outcome. These findings raise questions about the reliability of prediction markets when trading activity deviates from political reality, suggesting that these platforms may be susceptible to irrational market behavior or manipulation rather than serving as objective forecasting tools.