Cramer turns sour on this stock after it pushed back $1 billion in business

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:

First Solar: "On that conference call you heard that they pushed back the billion dollar's worth of business. They pushed back a billion dollars! There was no way you could get behind that stock. Absolutely not! That was a very bad call."

Hortonworks: "I think they missed the quarter bad. I think people don't really care for them. But you know what? It's down so low I don't think it's such a bad buy. I would speculate on it."

ConforMIS: "No medical device stocks, and that one in particular. It looked like a good idea, and that was about all it looked like."

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