That's a growth stock that is trading at an unusually high price-earnings ratio compared to growth, ... It's being priced as a rather racy e-commerce company. They've done a really good job (of adapting to the Internet) -- that company thinks great, they have a great culture.
It's a trading rally, and not much more than that. If there's anything you can hang your hat on, it's that with every passing day, some investors become convinced that there's not going to be any serious fallout or damage to the economy or earnings due to the hurricanes.
It seems so tied to the price of oil, that it's very hard to forecast what stocks will do next. On balance the message of the markets for the last nine trading sessions, including today, seems to have shifted to say that the price of oil is taking a chunk out of consumer spending.