Columbia University Study Finds 25% of Polymarket Volume Linked to Wash Trading Over Three Years

A Columbia University study identified wash trading in approximately 25% of Polymarket's transaction volume across three years. The research, published on SSRN, analyzed blockchain data from Polygon and found artificial trading activity peaked at 60% of total volume in December and stood at around 20% in early October. Polymarket is preparing to re-enter the U.S. market through its acquisition of QCX.