a16z crypto stated that last week, the weekly trading volume of prediction markets reached $14.4 billion for the first time, setting a new all-time high for the third consecutive week, more than doubling from the beginning of the year's roughly $5-6 billion and increasing over 10 times compared to a year ago. At the same time, Open Interest rose to $1.6 billion, hitting a record for the third consecutive week, an increase of about 8 times from last autumn. Kalshi and Polymarket's non-sports markets (politics, economy, geopolitics, etc.) had a trading volume of $3.6 billion last week, already surpassing the total trading scale of prediction markets (including sports) last year.