Why S&P Global Stock Tumbled by Nearly 10% on Tuesday

Somewhat uncomfortably, on Tuesday the performance of S&P Global (NYSE: SPGI) stock was far worse than that of its most popular offering, the S&P 500 index. The company's shares lost nearly 10% of their value that day, due to an earnings report that didn't meet expectations. Meanwhile, the index dipped marginally, falling by 0.3%. Nearly in line with estimates S&P Global's fourth quarter saw the financial data and information company earn almost $3.92 billion in revenue, which bettered the year-ago figu ...