NEW YORK (AP) -- Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and the Nasdaq Stock Market:
UnitedHealth Group Inc., down $2.61 to $68.76
Health insurers participating in the government's health care marketplace say the new system is providing inaccurate data.
Advanced Micro Devices Inc., down 56 cents to $3.53
The company saw a steep decline in sales of chips for notebook computers and Citi cut its price target to $4.50
Chipotle Mexican Grill Inc., up $70.67 to $509.74
Profit surged 15 percent in the most recent quarter and the Mexican food chain issued an optimistic outlook for the year.
Baker Hughes Inc., up $3.77 to $55.55
A seasonal recovery in Canada and strength abroad pushed quarterly profits up 22 percent at the oilfield services company.
Google Inc., up $122.61 to $1,011.41
The Internet search-engine company put up third-quarter numbers that far surpassed Wall Street expectations, driving its stock past the $1,000 mark for the first time.
Intuitive Surgical Inc., down $22.61 to $376.52
Quarterly profits slid as sales of the medical company's da Vinci surgical system fell under criticism from some experts.
Ariad Pharmaceuticals Inc., down $1.83 to $2.67
The drug company will discontinue a late-stage study of its leukemia drug because of patient heart attacks and strokes.
Acacia Research Corp., down $4.14 to $15.48
The patent collector shocked investors with a loss in the most recent quarter and was downgraded by analysts at Stephens.
- Health Care Industry
- New York Stock Exchange