NEW YORK — They sold in May and went away, all right.
With a disappointing finish on Thursday, the stock market closed what was by some measures its worst month in two years. Over five dismal weeks, Facebook fizzled, a debt crisis in Europe loomed, and nobody was in the mood to buy.
When May mercifully ended, the Dow Jones industrial average and other major indexes had erased most of the strong gains they built up through March and held on to in April.
The Dow lost 820 points for the month, its worst showing since May 2010.