What I'm really interested in is the forecast. China seems to be committing more dollars to cleaning up their air which could be the real driver of this stock. Also David @ Motley Fools has added this stock to his recommendation list from the LA and San Diego gas bus engine arrangement. He feels Westport is in the best position to capitalize on this movement.
Add these factors all up and you get a company could can grow 50% a year for the next 5 - 10 years.