- It's that time again! "Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.
Clean Energy Fuels Corp.: "It has run out of gas because we're not going natural gas. I'm sorry."
Stem Inc.: "Stem is good. I like the idea of what they've got. Good infrastructure play."
LKQ Corporation: "You know I've liked LKQ. That's the best way to make a new car from old parts."