Apple (AAPL -1.00%) stock has been a winner for investors over the years, but in the earliest days of the artificial intelligence (AI) boom, it hasn't been the most sought-after investment. The company took its time adding AI features to its devices, so it wasn't seen as a top AI stock.But this year, as investors began to worry about companies that rely heavily on AI for growth, they returned to Apple. In fact, with a 26% gain so far this year, Apple is the best performer among the "Magnificent Seven" tech ...