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Points of Focus
- MLB, NHL and MLS now have formal partnerships with at least one prediction-market platform, according to a Sept. 1 study.
- Five of the 20 largest S&P 500 Communications Services companies have integrated prediction-market products or data.
- Morgan Stanley was the only top-20 financial company classified as materially involved with prediction markets.
Three of the five major US professional sports leagues now have formal partnerships with prediction-market platforms, according to a new study tracking the industry’s expansion across sports, media and finance.
The Roosevelt Institute analysis, published Sept. 1, identifies MLB, the NHL and Major League Soccer as leagues with official prediction-market partnerships. The NBA and NFL remained without formal platform partnerships.
The researchers examined the 20 largest companies by market capitalization in the S&P 500 Communications Services and Financials sectors, looking for partnerships, investments and product integrations tied to prediction markets.
MLB, NHL and MLS sign prediction-market deals
Major League Baseball named Polymarket its official prediction market exchange partner in March. The agreement gives Polymarket access to official Sportradar data and rights to use MLB branding across league properties.
The NHL signed Kalshi and Polymarket as official prediction-market partners in October 2025, giving both platforms access to league data and branding. Major League Soccer followed in January through a multi-year agreement with Polymarket covering MLS, the MLS All-Star Game, MLS Cup and Leagues Cup in the US, with plans to integrate prediction-market activity into digital fan experiences.
Partnerships are also spreading to individual teams. Five MLB clubs announced Kalshi deals in late August, including the Los Angeles Dodgers.
Prediction-market data reaches major media platforms
Five of the 20 Communications Services companies examined in the study had integrated prediction-market products or data. The group includes Alphabet, Meta, Comcast, Warner Bros. Discovery and Fox.
Google Finance displays probabilities from Kalshi and Polymarket alongside other financial data, while Threads can embed Kalshi markets directly into posts. Kalshi data also appears across CNN and CNBC programming and digital products.
Fox has integrated Kalshi forecasts across Fox News, Fox Business, Fox Weather and Fox One, extending prediction-market data distribution through some of the largest media and internet platforms in the US.
Morgan Stanley stands alone among top financial firms
Morgan Stanley was the only company among the 20 largest S&P 500 Financials firms that the study classified as materially involved with prediction markets. The bank participated as a strategic investor in Kalshi’s $1 billion Series F round in May.
Other financial firms have started exploring the sector without reaching the study’s threshold for material involvement. Charles Schwab plans to make some event contracts available to customers, Goldman Sachs has assigned employees to study prediction markets, and JPMorgan CEO Jamie Dimon has said the bank could eventually offer prediction-market services.
The Roosevelt Institute argues that these commercial relationships could complicate future regulation as prediction markets become more deeply embedded in sports leagues, media companies and financial institutions. Its data shows sports and media have moved fastest so far, with formal league partnerships and distribution deals already reaching several major US brands.
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