Apple
eBay shares were down as much as 2.2% in afternoon trade on Tuesday after Apple announced Apple Pay, a new credit card payment system that is likely to compete with eBay's PayPal unit.
Fossil shares were down more than 3%, while Movado shares were off 1.5%, after Apple announced Apple Watch.
GT Advanced Technologies, which makes sapphire displays, was down as much as 11% after Apple announced that sapphire displays would be in Apple Watch, but not the company's newest iPhones: iPhone 6 and iPhone 6 Plus.
Shares of Apple, meanwhile, have been volatile on Tuesday, having gained as much as 4.5%.
SAI has full live coverage of Apple's announcements here.
This chart from Yahoo Finance shows the movement of each of these stocks against each other on Tuesday.
Yahoo Finance