Cramer's lightning round: MannKind is for speculation

• 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.

Carlotz: "I'm done with the used cars for now. Carmax may have been the peak when they had that really great number. I'm staying away."

MannKind: "Speculative stock. I hated the stock for the longest time, and I was right, but everybody on Twitter kept saying, 'how could he hate it?' The answer is, now it's a speculative play that I like, and you can tell your whole family that it's just for speculation."

Atossa Therapeutics: "I don't know it. I've got to look into that one."

TPG Pace Beneficial Finance Corp: "I don't want to give up on it."

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