Lightning Round: This stock is in the sweet spot

It's that time again! Jim Cramer rang the lightning round bell, which means he gave his take on caller favorite stocks at rapid speed:

Arris Group, Inc: "Well it's done a lot of great stuff in the cable industry. I myself have always found that this is a company with inconsistent quarters, but it is in the sweet spot. I would not trade it right now, I would own it."

Eaton Corp: "Supported by the yield. The last couple of quarters were not that good, but 3.7 percent yield. If it goes to 4 percent I'm a buyer."

Kroger: "Kroger is exactly who most companies want to be. It is the top supermarket with the best margins and the best customers, and I think it's terrific. I want to own Kroger."

Vertex Pharmaceuticals Inc: "That cystic fibrosis formulation, I think it's amazing. I think Vertex is a buy."

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FireEye Inc: "I'm glad you said long-term, because short-term I am concerned because it turned out to be a little more episodic than I'd like in terms of needing a hack attack ... the stock has come down a great deal, it's still worth $3.6 billion but I do believe it is worth more to someone else than to that company. I am not going to tell you to lose it now, it's too low."

Micron Technology: "Micron is a commodity. We've got Intel, NXPI and Skyworks all doing better. I prefer all of them, and also Analog Devices and Texas Instruments."

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