Bank stocks joined a broad market rally Wednesday fueled by the Clinton administration's decision to support the faltering Japanese yen by selling about $4 billion in the currency markets.

The yen jumped to 137.6 per dollar from 143.5, a 4.2% shift, because the Treasury said early Wednesday that it and Bank of Japan were selling dollars and buying yen. It was the U.S. government's first direct intervention in the foreign currency markets since August 1995.

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