The Block reported that the cumulative transaction volume of prediction market platforms Polymarket and Kalshi exceeded $150 billion as of April. However, the trend of setting new monthly highs for seven consecutive months stopped last month. Polymarket's active trading users decreased from 733,000 in March to 643,000, impacting the slowdown in transaction volume. Meanwhile, Polymarket is expanding its business in the US market, and Kalshi's transaction volume increased from $13 billion in March to $14.28 billion in April.
