"Top 5 Bargain S&P 500 Dividend Stocks to Buy Now"

When considering high-yield dividend stocks in the S&P 500, investors should be cautious. Altria's declining cigarette business raises concerns about the sustainability of its dividend, while Pioneer Natural Resources and Devon Energy have variable dividend policies tied to energy prices, making their income streams unreliable. Additionally, Pioneer's pending acquisition by ExxonMobil adds further risk. Not all high-yield stocks are worth owning, and these three may not be attractive options for investors seeking reliable income from their portfolios.