US banking giant JPMorgan Chase Friday reported a rare quarterly loss due to high legal costs, even as its underlying business produced results that bested expectations. The bank, the nation\'s largest by assets, reported a net loss of $380 million on revenues of $23.12 billion, due in large part to a $9.15 billion charge for legal expenses following a series of high-profile regulatory problems. However, when the special items were stripped away, the bank earned $1.42 per share, 21 cents above expectations.