Polymarket has achieved a significant milestone by surpassing Kalshi in weekly trading volume for the first time. Last week, Polymarket's trading volume reached $1.93 billion, outpacing Kalshi's $1.87 billion. This marks a notable achievement in the prediction market sector, highlighting Polymarket's growing influence and activity.In comparison, other platforms such as Probable, Opinion, and Predict.Fun reported trading volumes of $133 million, $132 million, and $55 million, respectively. The data underscores Polymarket's leading position in the market, as it continues to attract substantial trading activity.