Gold prices fell for the second straight day and hit a one-week low on Wednesday, pressured by earlier strength in the U.S. dollar and as investors assessed Federal Reserve Chair Janet Yellen testimony before a congressional committee. Yellen was thrust into the election-year boxing ring during the hearing, defending the central bank's regulatory role and considering changing the annual stress tests it gives to U.S. banks to see if they can withstand a massive financial crisis.


Spot gold fell 0.3 percent at $1,322.43 an ounce by 4:30 p.m. EDT. It fell nearly 1 percent on Tuesday, its biggest single-day loss in a month, on stronger risk appetite.