Investors have been thrilled to see signs of slowing inflation and strong economic growth, and are responding to the good news by pushing the index higher. Coca-Cola (NYSE: KO) shares are down 8%, in fact, making the beverage giant the sixth worst-performing stock out of the 30-member index. Profitability ticked up to 30% of sales last quarter, thanks to the combination of higher selling prices, rising volume, and cost cuts.