Traders work on telephones at the London Metal Exchange (LME) in London. Nickel extended its drop this week and was 13 percent lower for the year at $16,305 on the London Metal Exchange by 1:43 p.m. Tokyo time. The LMEX index of six industrial metals was down 2.1 percent and the Standard & Poor’s GSCI gauge of 24 commodities fell 6.6 percent. Photographer: Matthew Lloyd/Bloomberg