Here's what CNBC's "Fast Money" traders had to say about some of the market's biggest movers on their "Pops and Drops" segment Thursday.

Pops

Solarfun ( SOLF) popped 17%. Karen Finerman said she's not getting involved in this one.

Drops

Motorola ( MOT) dropped 5%. Finerman said that the stock gave back all of yesterday's gains. She said the split of the company isn't working out.

XM Satellite Radio ( XMSR) was down 8%. Jeff Macke said that Justice Department approval of the company's merger with Sirius ( SIRI) is half the battle. The Federal Communications Commission is less of a laydown than people expected. The merger isn't done yet, he warned.

Research In Motion ( RIMM) lost 5%. Pete Najarian said they're just playing the range here. "Why not take profits?" he asked.

Perdigao ( PDA) fell 6%. Tim Seymour said that the company cannot pass on higher commodity prices, but still believes the company's an interesting story.

Netflix ( NFLX) ticked down 4%. Macke said the stock's had a great run. He said he was wrong about the company being dead, or at least he was early.

Robbins & Myers ( RBN) got a 22% haircut. Najarian said that the engineering equipment company is in the right sector at the right time but can't reach estimates. That's a problem, he said.

Taiwan Semiconductor ( TSM) slipped 4%. Seymour said the decline was linked to a drop in Chinese stocks. It's still a good story, he said.

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