The Stock Market Just Did This for the First Time in Nearly a Year. History is Strikingly Clear About What Happens Next.

The S&P 500 entered the third year of a bull market back in October and finished the year with a bang: a double-digit gain that brought the index's three-year increase to 78%. Over that time period, investors have been particularly optimistic about stocks in high-growth areas, from artificial intelligence and quantum computing to companies leading in the weight loss drug market. In this context, stocks including AI leader Nvidia, quantum innovator IonQ, and weight loss drug giant Eli Lilly each have skyroc ...