Kalshi has completed a $1 billion funding round that values the prediction market exchange at $40 billion, the company announced on Thursday. This valuation marks a significant increase from its previous round in May, which valued the firm at $22 billion. The latest investment was co-led by Sequoia Capital and Wellington Management.

The surge in valuation follows continued growth in Kalshi’s prediction markets, driven by high-profile events such as the 2026 FIFA World Cup and the NFL season. These events spurred explosive growth in combo contracts, similar to sportsbook parlays, alongside increased trading in election markets ahead of the U.S. midterms. However, the company faces legal challenges regarding its sports offerings. Two U.S. appeals courts ruled in August and September that states have the authority to regulate sports-related event contracts, contradicting Kalshi’s position that federal jurisdiction applies. A third appeals court has ruled in favor of federal regulation, setting the stage for a likely Supreme Court resolution.

In late May, Kalshi launched perpetual futures, becoming the first exchange to bring this crypto-style trade to the U.S. The company stated it aims to build a broader financial exchange beyond prediction markets. New funds will support the development of leveraged event contracts, perpetual futures tied to individual stocks, and markets for trading compute prices. Additionally, Kalshi plans to invest further in its institutional business, noting that excluding market makers, institutional entities represented 25% of total trading volume as of September.