The FTSE 100 -1.82% is the developed world's worst performing market today as worries about a crackdown on growth in China sink commodity prices. With its heavy weighting of resource stocks, the FTSE is "just an option on global growth." (RIO) -3.43%. (BHP) -3.02%. (TUWOY.PK) -4.01%. (XSRAY.PK) -5.45%.