These companies already are delivering solid growth, but more is on the horizon.The "Magnificent Seven" stocks, which drove indexes higher over the past couple of years, continued that job in recent months. And for good reason. Most of these tech giants are playing key roles in the high-growth industry of artificial intelligence (AI), a market forecast to reach into the trillions of dollars by the early 2030s. Investors, wanting to benefit from this growth, have piled into these current and potential AI win ...