Shares of Lululemon and Celsius Holdings have plunged, but their brands remain strong. Late July and early August were a roller-coaster ride for the stock market. The Nasdaq-100 index hit a new alltime high in July but then fell rapidly by more than 10%. Investors are worried about a slowing economy and consumer spending in the United States. There is even talk of a recession. Smart investors know to avoid the headlines and macroeconomic talk. The folks who are talking of downturns now are the same people w ...