BIS: OTC Derivatives Market Volume Shrank In 2H 2012 LONDON (Dow Jones)--The outstanding volume of over-the-counter derivatives shrank by almost 10% in the second half of last year, according to data released Wednesday by the Bank for International Settlements. The BIS said notional amounts outstanding fell to $647.76 trillion by the end of last year, from $706.88 trillion at the end of June, due largely to declines in the number of interest-rate swaps, credit-default swaps and equity-linked contracts. Interest-rate swaps accounted for more than three-quarters of the total notional volumes outstanding. At the same time, the gross market value of...