Event contracts now carry a $40 billion price tag. Kalshi, the U.S. prediction-market exchange, said on October 29 that it closed “a $1 billion Series G at a $40 billion post-money valuation, co-led by Wellington and Sequoia,” a raise that lands the venue squarely in the middle of the regulated-trading economy. The number is large, but the syndicate is the story: a pension-and-endowment asset manager and one of venture capital’s most durable names are now underwriting a platform that runs sports, politics, crypto, commodities and perpetual futures under one roof.