PPL (PPL), the top-yielding stock among the S&P 500 Utilities, has underperformed its peers in terms of total returns in 2018. PPL’s total returns were -1%, while broader utilities (XLU) have returned more than 2% year-to-date. NextEra Energy (NEE) has returned 10% during the same period. Total returns consider the dividend payments and stock appreciation during a particular period. So far, broader markets have returned 11% in 2018.