Benzinga's Top Pre-Market Gainers

Unitedhealth Group Inc UNH moved up 6.85% to $59.88 in the pre-market session. UNH lifted its dividend by more than 30%. Its board also authorized the purchase of 110 million of the company's shares. PulteGroup Inc PHM added 5.27% to $8.59 in the pre-market session. Analysts at Credit Suisse upgraded PulteGroup from “neutral” to “outperform.” Chesapeake Energy Corporation CHK surged 4.71% to $17.80 in the pre-market session. CHK's trailing-twelve-month operating margin is 22.69%. Alpha Natural Resources Inc ANR soared 2.73% to $10.55 in the pre-market trading. ANR's trailing-twelve-month revenue is $7.79 billion.