Cramer's lightning round: I want to be a buyer of Canopy Growth

• 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.

Vertex Pharmaceuticals: "I don't understand ... why this thing is as low as it is. ... I think the negative commentary is wrong, and I agree with you."

Quantumscape: "I sure don't want you to bail Quantumscape. It's too interesting of a spec."

Canopy Growth: "I want to be a buyer of Canopy."

EXp World Holdings: "This is a real deal company, and it's a very, very good company. I am more partial to Zillow, but they have a fabulous website. They're doing great things."

Fuelcell Energy: "You've got a great basis. You want to take a little out of that basis and you can let it ride. You don't have to worry about it."

Dish Network: "I read a lot of negative research in the last few days. No. No. Too risky for me."

Luminar Technologies: "All these stocks got hit because of what happened with this Churchill and the merger with Lucid, and it brought all of them down. ... I'd rather be in Southwest Air."

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