Rising tides don't always lift all boats. The S&P 500 index reached new all-time highs several times since 2024 began, but many of its components have not participated in the rally.With most investors focusing all their attention on the artificial intelligence (AI) revolution, plenty of reliable dividend payers aren't getting the attention they deserve. Since peaking in 2021, shares of Medtronic (MDT 1.75%) are down about 38% and poised for a rebound. Altria Group (MO -2.77%) and Realty Income (O 0.90%) hit ...