The Block reported that the cumulative trading volume of prediction market platforms Polymarket and Kalshi surpassed $150 billion as of April. However, the trend of breaking monthly records for seven consecutive months halted last month. Polymarket's active trading users decreased from 733,000 in March to 643,000, contributing to the slowdown in trading volume. Meanwhile, Polymarket is expanding its operations in the U.S. market, and Kalshi's trading volume increased from $13 billion in March to $14.28 billion in April.
