Gold (XAU) and silver (XAG) moved higher after the U.S. Treasury expanded its bond-buyback program, which lowered Treasury yields and weakened the U.S. dollar. The spot gold price moved above $4,500 while the spot silver price rose above $67. But the hawkish Fed signals, inflation risks and tensions with Iran may keep both markets volatile. The direction of the 10-year Treasury yield will remain important while gold must hold above $4,300 and silver above $60 to maintain the bullish momentum. This article presents the key macro drivers, Treasury yield signals and technical levels that may determine the next move in gold and silver prices.