S&P Dow Jones Indices partners with Kalshi to build prediction market indices

The index giant will turn Kalshi market data into benchmarks, while Kalshi gets to settle contracts against official S&P values The company behind the S&P 500 is getting into the forecasting business. S&P Dow Jones Indices and Kalshi have agreed to build indices that track real-world events and risks. Under the partnership, announced October 26, 2026, Kalshi becomes the preferred prediction market platform for event contracts tied to S&P DJI benchmarks. The arrangement runs in two directions, and each side gets something the other has. First, Kalshi will use official S&P DJI index values to settle its upcoming event contracts.