Stocks gain, pushing the S&P 500 to 5-year high

Walgreen Co., the nation's largest drugstore chain, fell 61 cents, or 1.6 percent, to $37.18 after the company said that a measure of revenue fell more than analysts had expected in December, even as prescription counts continued to recover.

Stocks may also be benefiting as investors adjust their portfolios to favor stocks over bonds, said TD Ameritrade's Kinahan. A multi-year rally in bonds has pushed up prices for the securities and reduced the yield that they offer, in many cases to levels below company dividends.

Goldman Sachs reaffirmed its view that stocks "can be an attractive source of income," and warned that there is a risk that bonds may fall. In a note to clients, the investment bank said that an index of AAA rated corporate bonds offers a yield of just 1.6 percent, less than the S&P 500's dividend yield of 2.2 percent.

The 10-year Treasury note fell, pushing its yield higher. The yield on the 10-year note fell 2 basis points to 1.91 percent. The note's yield has now climbed 52 basis points since falling to its lowest in at least 20 years in July.

Other notable stock moves;

— Accuray Inc. plunged $1.37, or 20 percent, to $5.41 after the radiation oncology equipment company reported weak sales and said it would cut 13 percent of its staff.

— Lululemon, a yoga apparel maker, dropped $3.14, or 4.2 percent, to $71.95 after Credit Suisse predicted slowing momentum and downgraded its stock.

— Finish Line Inc., an athletic footwear and clothing company, fell $1.58, or 8.3 percent, to $17.18 after it reported a small loss after sneaker trends changed and customers didn't take to its new web site launched in November. Analysts had forecast a profit.