Cramer's lightning round: Managed care stock fears could be 'overdone'

• 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.

Centene Corp.: "I'm beginning to believe that the worries about managed care stocks are overdone and you've got to do some buying and [CEO Michael] Neidorff's doing a good job."

Lannett Co.: "I think you've got enough. If anything I would be [taking some] off the table."

Fastly: "I actually want to ... throw a little switcheroo at you. If Nvidia can merge with Mellanox, you'd have the ultimate-edge computing company and that's the one I want you to own."

Korn Ferry: "Let me look into it. That is shocking to me that stock's down."

WATCH: Cramer's lightning round

Disclosure: Cramer's charitable trust owns shares of Nvidia.

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