Indra Nooyi

Nooyi, now in her 10th year as CEO, shows no signs of slowing down. ­PepsiCo’s $155 billion market cap is up 18% in the past 12 months, even as international volatility hit 2015 sales and profits, which dropped 5% and 13%, respectively. Investors seem to have faith that Nooyi’s push toward healthier food and drink offerings will pay off—and they like the $63 billion company’s $3 billion in cost cuts over the past three years too. Some think more acquisitions in the health space may come soon, as Nooyi further diversifies out of the declining soda category.