With Apple's iPhone event about a day away, we can expect new iPhones to hit store shelves in just a few weeks. While a few rumors have pointed to a September 20 launch date, we'll have to wait until tomorrow to know for certain. Either way, an iPhone launch is steadily approaching.
That being the case, Chris Whitmore of Deutsche Bank recently issued a research note to clients tracking the performance of Apple shares in the wake of each iPhone launch. Whitmore found that shares of Apple increased following each iPhone launch, save for
