Meet the Little-Known Artificial Intelligence (AI) Stock Leading the S&P 500 in 2024 (Hint: Not Nvidia)

Nvidia is the second best-performing stock in the S&P 500 year to date behind Vistra.Artificial intelligence (AI) could be one of the largest investment opportunities in history. Consequently, many investors have become familiar with Nvidia (NVDA -2.81%), the semiconductor company whose chips power the most advanced AI systems.Nvidia is the second best-performing member of the S&P 500 (^GSPC -0.92%) year to date, with its share price increasing 200% amid unprecedented demand for its hardware. But AI stocks ...