Bank stocks plummeted for the fifth day in a row on Wednesday, with some Wall Street analysts labeling the setback a bull market interlude and others warning that investors may have turned cautious on the industry.

The slump was felt by nearly all of the nation's 50 largest banks, and in some cases the slides were sharp. Citicorp, for instance was off $1.625 to $64.625 while BankAmerica Corp. fell $2.875 to $59.875.

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