• 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.

Signet Jewelers: "I think Gina Drosos is doing a remarkable job...You've got a winner there."

Equinix: "I can't recommend it, it's just up so much...But I do like it very much."

Infosys: "Smart consulting company...I like the stock."

Commercial Metals: "It's a winner."

Amkor: "You got a winner."

Arm: "There is going to be what's known as a lock-up expiration where Softbank is going to be able to sell a lot of stock...If you want to buy some right now and then wait for that lock-up to end."

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