UPDATE 1-Goldman Sachs burned by bad currency bets in 3rd quarter
November 21, 2013 at 18:36 PM EST
NEW YORK, Nov 21 (Reuters) - Goldman Sachs Group Inc lost more than $1 billion on currency trades during the third quarter, regulatory filings show, offering some insight into why the firm, considered one of Wall Street's most savvy traders, reported its worst quarter in a key trading unit since the financial crisis.