The next major catalysts for a market move, Colas said, will be gauges of spending by consumers on Black Friday, the traditional shopping rush on the day after Thanksgiving.
Greece's neighbors decided to give the country two more years to meet its economic targets. They still disagree with the International Monetary Fund, another key lender, over how to manage the country's debt over the long term. Until lenders reach an accord, they can't release the billions that Greece needs to make upcoming payments.
IMF managing director Christine Lagarde said Greece should reduce its debt burden down to 120 percent of its economic output by 2020, the original target of 2020. But Jean-Claude Juncker, leader of the euro zone's finance ministers, said that the deadline would likely be changed to 2022. The lenders will meet again on Nov. 20.
The yield on the 10-year Treasury note slid to 1.59 percent from 1.64 percent late Friday as demand increased for ultra-safe investments. The U.S. bond market was closed on Monday in observance of the Veterans Day holiday.
Among stocks making big moves:
Microsoft plunged 3 percent after it announced the departure of Steven Sinofsky, who ran its Windows division. The unexpected move comes just weeks after Microsoft launched Windows 8, its first major overhaul in years of the operating system used on most of the world's computers. Microsoft fell 90 cents to $27.09.
Weatherford International dropped 15.9 percent after the oilfield services company reported revenue that was lower than analysts had been expecting. The company did not report full results because of accounting problems that have led it to revise its results from numerous periods. The stock fell $1.73 to $9.15.
Apparel chain operator TJX Cos., the parent of TJ Maxx and Marshalls, rose 2.7 percent after raising its full-year earnings forecast and reporting third-quarter revenue that exceeded analysts' expectations. The stock added $1.09 to $42.06.
Daniel Wagner can be reached at www.twitter.com/wagnerreports .