KEY POINTS
  • 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.
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Ultra Clean's year-to-date stock performance.

Ultra Clean: "I like Ultra Clean Holdings very much, but the problem is is that I really like the industrial gases that are delivered by Ultra Clean and that means you should buy Linde, which is owned by my charitable trust."

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Nikola's year-to-date performance.

Nikola: "Nikola is a meme stock, it's a controlled stock. It doesn't have anything to do with what's really going on at the company. It's got a very big short position, it can continue to go or not."