Abbott Laboratories With a market capitalization of $179.5 billion, Abbott Laboratories (NYSE: ABT) is one of the largest healthcare companies in the world. Various factors like inflation and the potential for a recession have led the S&P 500 index to drop 21.6% from its all-time high set at the start of this year. If you are seeking to grow your passive income and wealth over the long haul, you might want to take a closer look at any of these five Dividend Kings that look like great buys at the moment.