The Globe and Mail reports in its Wednesday edition that Groupe Dynamite saw its stock price plummet by more than 32 per cent in Tuesday afternoon trading on concerns about potential for slowing growth, even as the retailer reported double-digit growth in both sales and profits for the first quarter. The Globe's Susan Krashinsky Robertson writes that Groupe Dynamite said its profit grew to $51.7-million or 45 cents a share on a diluted basis in the quarter ended May 2, compared with $27.3-million or 24 cents in the same period last year. Revenues spiked by 37 per cent year-over-year, to $310.6-million. Comparable sales grew by 22.6 per cent, or 24.7 per cent on a constant-currency basis. Still, that comparable sales growth was below analysts' expectations of 25.2 per cent in the quarter. Scotiabank analyst John Zamparo said that investors in the stock "had some sense" that comparable sales were beginning to moderate in the first quarter. He said, "This was inevitable at some stage." He added that the company's forecast for comparable growth of 11 to 14 per cent for this year remains unchanged. Chief operating officer Stacie Beaver pointed to overall revenue growth as a sign of the success of its store expansions.