iPhone 16 preorders aren't living up to the hype.Apple (AAPL 3.71%) shareholders are holding onto a successful iPhone 16 launch. Otherwise, the stock could be in trouble. Right now, Apple's stock trades at a premium price point despite its weak growth prospects, but the iPhone 16 could change all of that.However, Apple investors received concerning news about the iPhone 16, and it could spell disaster for the stock.iPhone 16 preorders are reportedly underwhelmingTF International Securities analyst Ming-Chi ...