Cramer's 'Stop Trading!': RadioShack

"Lots of people say that financials are weak," said Jim Cramer on Friday's "Stop Trading!" segment on CNBC. "The great test cases are all these different secondaries."

He said that like Fifth Third(FITB Quote), Marshall & Ilsley(MI Quote) "used to be a great bank," but it "lost its way." After its recent stock offering, it's once again making money for people, said Cramer.

Cramer said that RadioShack(RSH Quote) is a play both on the conversion to digital TV and the fact that it has 10% of the Palm(PALM Quote) Pre. "There's not a Palm Pre available in this country," he said. "That is a sold-through product."

He likes Palm, too. "Palm's real," he said.