Is beauty retailer Ulta's slowing growth a temporary issue or a pattern? If you've ever seen a stock price chart, you know that stock movements, whether up or down, are never linear. Sometimes, the way the stock behaves in the short term can influence investors to make poor decisions. A price jump can get investors excited, leading them to buy in only to see the stock fall. A drop can scare investors into selling shares of a company they had good reason to buy, leaving them to miss out on its recovery. Nobo ...