KEY POINTS
  • Apple stock climbed higher during the first half of Apple's event
  • Yet the shares began to slide after Apple started sharing details on new iPhones
  • By the time the event was over, the stock was in the red for the day

Apple investors bought its shares during the build-up to Tuesday, but then sold the news.

Apple shares were trading at $161.37 at 1 p.m. Eastern time, when the event began, and climbed as high as high as $163.75 at 1:55 p.m., when CEO Tim Cook began talking about the iPhone.