Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:
UnitedHealth Group Inc., up $3.70 to $109.32
The nation's largest health insurance company reported a boost in fourth-quarter profit that beat Wall Street expectations.
IBM Corp., down $4.86 to $152.09
The technology company reported a drop in fourth-quarter profit on declining revenue and gave a disappointing 2015 outlook.
Eldorado Gold Corp., down $1.57 to $6.21
The gold and metals mining company said it had record gold production in 2014, but it expects production to drop in 2015.
Insperity Inc., up $4.90 to $41.24
Activist hedge fund Starboard Value disclosed it has taken a 13.2 percent stake in the human resources outsourcing company.
Netflix Inc., up $60.48 to $409.28
The Internet video company reported a boost in quarterly profit on subscriber growth, beating Wall Street expectations.
Advanced Micro Devices Inc., up 21 cents to $2.45
The chipmaker reported a fourth-quarter loss on lower revenue and hefty charges, falling just short of Wall Street expectations.
CA Technologies Inc., down $1.73 to $29.94
The maker of IT management software reported better-than-expected quarterly profit, but revenue fell short of forecasts.
Acacia Research Corp., down $2.58 to $13.39
A California court ruled against the patent-holding company in a patent infringement case that included Apple Inc. and Verizon.
Puma Biotechnology Inc. , down $25.07 to $191.90
The biotechnology company said it will publicly offer 1 million shares of its common stock.