Choosing between CME Group (CME +1.50%) and S&P Global (SPGI +0.49%) involves weighing the world’s leading derivatives marketplace against the preeminent provider of credit ratings and financial data. Which is the better buy today?

Both companies are infrastructure giants in the financial world. CME processes trillions in trades, while S&P Global provides the ratings and analytics that keep capital flowing. Investors often look to these financial stocks for stability, but their business models offer different exposures to market volatility and economic growth.

The case for CME

CME Group operates the world’s leading derivatives marketplace, enabling clients to trade futures and options across asset classes like energy and agriculture. The…