Cramer's Lighting Round: Vertiv is a buy

• 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.

GlobalFoundries' year-to-date stock performance.

GlobalFoundries: "I think it's an interesting stock. I'm not a big foundry guys unless it's Taiwan Semi. And that's the one I like."

Danaher's year-to-date stock performance.

Danaher: "What a comeback Danaher has made...I think you can go higher, just like the Danaher of old."

Cal-Maine Foods' year-to-date stock performance.

Cal-Maine Foods: "An unnecessary stock own, frankly. Ineffectual, not for me."

Workday's year-to-date stock performance.

Workday: "Workday, Salesforce, and ServiceNow are the three that have the models that I like. They are true platform companies...You've got three winners there."

Vertiv's year-to-date stock performance.

Vertiv: "That quarter was magnificent...They are the guts of the data centers. Stay long [buy, buy, buy!]."

Pure Storage's year-to-date stock performance.

Pure Storage: "They've gotten their act together. This had been an inconsistent company....They really do have it together, and I think it's a good one, and I would not let it go."

Arm's year-to-date stock performance.

Arm: "Arm is magnificent. Rene Haas is doing an incredible job."

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Disclaimer The CNBC Investing Club Charitable Trust holds shares of Danaher and Salesforce.

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