Wall Street Seems Calm. A Closer Look Shows Something Else.

The S&P 500 has climbed sharply this year, with few big swings. Below the surface, though, there’s a great deal of turmoil Standard & Poor’s 500-Stock Index, Stocks and Bonds, Artificial Intelligence, Computers and the Internet, Derivatives (Financial Instruments), Hedge Funds, Mutual Funds The S&P 500 has climbed sharply this year, with few big swings. Below the surface, though, there’s a great deal of turmoil NYT > Business