Westport Innovations' Stock Is Down 80%: Are Natural Gas Vehicles a Dead Idea?
After announcing lowered guidance for revenue in 2014, Westport Innovations is getting pummeled. Again.
3 Reasons Cummins Inc.'s Stock Could Rise
Cummins has expanded its leadership in diesel engines over the past few years, and that's been one of several keys to its recent success.
Why Cummins Inc. Stock Could Prove Wall Street Wrong
Why Cummins' shares are flat this year, and what lies ahead.