Stock Market Just Had Its Worst Day in Months

The stock market slumped to its worst loss since August on Tuesday, giving back some of the big gains it has posted since the beginning of the year. Health care companies were by far the biggest losers. Insurers, drugmakers, and distributors slumped following news that Amazon was teaming up with JPMorgan Chase and Berkshire Hathaway on a health care venture. The Dow Jones industrial average slid 362 points, or 1.4%, to 26,076, per the AP. The Nasdaq lost 64 points, or 0.9%, to 7,402, and the Standard & Poor's 500 index fell 31 points, or 1.1%, to 2,822. CVS Health sank 4.1% and UnitedHealth Group dropped 4.3%. (More stock market stories.)