Gold Fields is trading 9.59% higher at ZAc 64,371, alongside its November 5 operational update. - Q3 production was 605koz, down 3% year over year; all-in sustaining costs were US$1,965/oz, up 26%. - The company maintained full-year guidance, expects production toward the upper end of its range, and anticipates a stronger fourth quarter. - The update noted Windfall authorization to proceed to construction and US$554 million in additional buybacks completed by November 3.