A down day on Tuesday with all the major benchmarks slipping in the red on light volume where anything can really move the markets. The utilities sector was the biggest drag for the S&P 500 but for the year, the sector is still up nearly 27%. No notable gainers among the blue chips but Caterpillar (CAT) and Intel (INTC) led the losses. It was an up day for commodities. Crude oil settled up 51 cents, topping $54 a barrel. Gold prices also turned higher to settle above $1,200 an ounce. NeuroDerm (NDRM) was a big winner in today's session. Shares soared almost 200% on heavy volume. Investors cheered its data showing its Parkinson's drug could potentially help avoid surgeries associated with other treatments.