Copper is heading for its longest run of weekly losses in more than half a decade, as base metals suffer steep declines on a strong dollar and lingering concerns over Chinese demand.
While copper ticked higher on Friday, it has drifted lower since late-September and is poised for its seventh consecutive weekly fall. Prior to the US presidential election, worries about China's economy were a major driver. The greenback's spike since Donald Trump's victory has added to headwinds.