- CME Group Inc decreased margins for COMEX 100 Gold Futures contracts by 9.1%.
Gold slumped to a near nine-month low on Friday and headed for a third straight weekly decline after Federal Reserve Chair Jerome Powell disappointed investors with his view on rising yields that pushed up the dollar and bond yields.
Spot gold eased 0.2% to $1,693.79 per ounce by 0055 GMT, having earlier dropped to its lowest since June 8 at $1,688.96. It was down 2.3% for the week so far.
US gold futures dropped 0.6% to $1,691.20.
Powell on Thursday repeated his pledge to keep credit loose and said although the rise in yields was "notable", he did not consider it a "disorderly" move.
The US 10-year yield topped 1.5%, while the dollar surged to three-month highs. Higher yields increase the opportunity cost of holding bullion, which pays no interest.
US jobless claims rose last week after brutal winter storms in mid-February.
The amount of gold held by exchange traded funds fell by 84.7 tonnes worth $4.6 billion in February, the World Gold Council (WGC) said.
CME Group Inc decreased margins for COMEX 100 Gold Futures contracts by 9.1%.
Holdings of the world's largest gold-backed exchange-traded fund, SPDR Gold Trust fell 0.4% on Thursday.
Palladium climbed 0.2% to $2,343.55. Platinum shed 1.2% to $1,113.02.