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Twitter, Facebook & more: 17 trades in 67 seconds

17 trades in 67 seconds

Twitter stock declined in after-hours trading on weak guidance Monday, leading to divergence of opinion among the CNBC "Fast Money" traders.

Posting third-quarter earnings of 1 cent per share, in line with Wall Street expectations, Twitter beat on the revenue line with $361 million, compared to analyst estimates of $351 million. But it fell short of monthly average users.

Read More Twitter earnings in line, revenue beats

"I would add if this selloff continues like this," Stuart Frankel's Steve Grasso said. "This is a stock people are definitely people are buying for growth, and they're looking for different metrics."

Traders on the floor of the New York Stock Exchange.
Brendan McDermid | Reuters

Grasso said that he was long Twitter shares.

Private Advisor Group's Guy Adami, who does not hold a position in Twitter, said that the quarter wasn't bad, noting that user growth was still up about 24 percent from the previous quarter.

"I think you buy it at $43 and play for the bounce, not unlike the bounce you saw in Netflix and to a certain extent the bounce you've sort of been seeing in Amazon," he said.

Karen Finerman of Metropolitan Capital Advisors wasn't touching it.

Read MoreWhere a 4-star manager sees value in stocks

"It's not for me at this valuation, having missed on a major metric," she said.

Yet Internet analyst Bob Peck of SunTrust Robinson, who has a "buy" recommendation and a $58 price target on the stock, remained positive on Twitter.

He also added that Facebook, which is expected to report earnings Tuesday after the market close, would likely post even better results.

Read MoreEbola or not, stock may near highs again: Pro

"Everything we've heard about the fundamentals of the advertising business for them is just tremendous," he said. "I think they'll do almost 15 percent sequential revenue growth. And the interesting part there is they still haven't turned on so many revenue levels, so many cash-flow drivers, they've got a long runway to go."

Watch "17 trades in 67 seconds" for how the pros are trading Twitter, Facebook and more.