Cramer recommends buying Lehman Brothers now that it is shutting down its subprime mortgage unit BNC Mortgage, he said on Stop Trading! today.
"You have to understand that when a company like Lehman takes this action it's bullish," he said. "[BNC] wasn't making them any money. They take the charge and they move on."
Shareholders of banks like Bank of America , Wells Fargo and Washington Mutual , which haven't been making money in the mortgage market, should clean up now that so many other lenders are closing down, Cramer said.
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