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:
Merck & Co: "Look I like Merck's quarter but it's a slow and steady wins the race tortoise."
Exact Sciences: "What can I say, it's for real. It's obviously real, it just moved up $5. At any pullback I like it because it's a game changer."
Questions for Cramer?
Call Cramer: 1-800-743-CNBC
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