By Nick Godt
NEW YORK (MarketWatch) -- Gold futures extended losses on Wednesday after an index of the service-sector of the economy unexpectedly fell in July. August gold futures fell $6.70, or 0.7%, to $963.10 an ounce in early North American electronic trading. The more active December contract fell $6.50 to $961.00. The Institute for Supply Management said its index on the services sector fell to 46.4 in July. Economists surveyed by MarketWatch expected the index to rise to 48 from 47, with readings below 50 indicating contraction.
