The Dow won't stay down, "but it should," Cramer said during Thursday's Stop Trading!.
Comcast , MGIC Investments , Zimmer Holdings , Laboratory Corp. all used to be "Fort Knox stocks," Cramer said, but they're down big today. Still, the market rallied.
Cramer called the financials "dreadful," saying the mortgage insurers are the Achilles heel of the group.
Nabors Industries is the "absolute worst I've ever seen in a group this great," Cramer said of the oil-services company.
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