"Apple Inc. (NASDAQ:AAPL) – Despite the stock falling after announcing earnings in late May, Apple regained ground toward the end of the quarter, fueled by the company's long-awaited AI announcement at its annual Worldwide Developers Conference (WDC). At the conference, the company showcased some of its new AI features powered by Apple Intelligence that would be coming to Apple products and also announced a partnership with ChatGPT. Investors greatly welcomed the announcement of Apple's AI strategy and the stock surged, passing Microsoft as the world's most valuable company (although this hallmark wouldn't last). Beta testing of these new features will be coming later this summer, but the initial promise and excitement looks to be a potential catalyst for an upgrade cycle, as the company looks to persuade users who have had the same smartphone for years to consider an upgrade."