Apple stock performance tied to launch event surprises
With the bigger-screen iPhone 6 largely a known quantity at this point, investors will be keying in on Apple’s (AAPL) other announcements at its fall product launch event on Tuesday. Apple is expected to unveil its first wearable device, dubbed the iWatch or iBand, and a mobile e-payment service, called iWallet, but much less is known for sure about those offerings. How investors react to any positive or negative surprises related to those items will dictate how the stock trades after the media event, which begins at 10 a.m. Pacific time, analysts say. The iPhone 6 already has been priced into the stock, analysts say. Historically, Apple (AAPL) stock has fallen an average of 1.2% on the day of its last six iPhone launch events, Piper Jaffray analyst Gene Munster said in a report Sunday. Apple stock fell after four of those events, was unchanged for one and rose a fraction…