In metal ETFs, SPDR Gold Trust ( GLD ) is down 3.2% to $133.27. Fears that the Chinese government will raise interest rates to rein in inflation pushed crude-oil futures sharply into the red to finish the week. In other energy futures, heating oil was down 2.46% to $2.36 a gallon while natural gas fell 3.08%, to $3.80 per million British thermal units.