The company's profitability is still surprisingly strong. Shares of retailer Williams-Sonoma (WSM -0.56%) went up 15.3% in September, according to data provided by S&P Global Market Intelligence, which was enough to easily outpace the 2% gain for the S&P 500. But when looking at August and September together, Williams-Sonoma stock was completely flat. In other words, shares fell sharply in August before merely bouncing back in September. Here's why it dropped it August: Williams-Sonoma's management reported ...