IBM

CEO: Virginia Rometty

Dec. 30, 2016: $165.99

June 30, 2017: $153.83

Change: -7.33%

IBM has been working through a business transformation to focus on high-margin cloud, analytics, mobile, social and security businesses that now account for nearly $33 billion in annual sales – 40 percent of the company's overall revenue.

In April the company reported that sales in its first quarter ended March 31 declined 2.8 percent to $18.16 billion – the 20th straight quarter of year-over-year revenue declines for the company.