In its other pro-business ruling this week, the court decided on Monday that Credit Suisse and other investment banks weren't guilty of setting stock prices during the dot-com bubble, as some investors had alleged.

FORBES: Magazine Article

"It was the one meaningful financing event that they didn't have access to, " says William Brady of Credit Suisse First Boston.

FORBES: Second helpings

Still, Credit Suisse analyst Michael Exstein believes the Penney rally won't continue.

FORBES: Merely Cosmetic