Cramer's lightning round: Virgin Galactic is not an 'investable frontier' - CNBC

"Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

Freeport-McMoRan Inc: "It's still incredibly cheap ... Copper hit an all-time high today and these guys have great assets. I think you've really got game with that one." Progress Software Corp: "The… [+669 chars]

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