Stocks of hospital operators are falling harder than the broader market on Friday after earnings reports from Tenet Healthcare Corp. and industry-giant HCA Healthcare Inc. underwhelmed investors. Tenet plunged by as much as 29%, the most intraday since November 2008, after its net operating revenue guidance for the year was trimmed, taking the outlook below the average view on Wall Street. HCA fell as much as 12% after its third-quarter results included revenue that narrowly missed consensus expectations, erasing more than $6 billion in value from its market cap.
