Cramer questions bank comeback because of default risk, praises Morgan Stanley as 'reinvented'

Jim Cramer: Banks are a default risk
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Jim Cramer: Banks are a default risk

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Stocks of some of the largest U.S. banks are rising recently on optimism about the progress of the U.S. economy and a job-market rebound lifted cyclical names across the board.

But CNBC's Jim Cramer advised investors to be a bit more selective in the current market, and especially when it comes to bank stocks.

The "Mad Money" host warned that despite the broad uptrend, certain banks are still seeing a flurry of defaults that may ultimately weigh on their business fundamentals and profit results in upcoming financial reports.