When Aetna (NYSE:AET) reported earnings 10 days ago on July 27th, 2011, analysts, on average, expected the company to report earnings of $1.08 on sales of $8.2 billion. Aetna actually reported earnings of $1.35 per share on sales of $8.3 billion, beating EPS estimates by $0.27 and beating revenue estimates by $104.7 million. Since the company’s report, shares of Aetna have fallen from $41.72 to $37.42, representing a loss of 10.3% in the past 10 days.In the past 52 weeks, Aetna share prices have been bracketed by a low of $26.42 and a high of $46.01 and are now at $37.42, 42% above that low price. Over the past week, the 200-day moving average (MA) has gone up 0.5% while the 50-day MA has declined 1.3%.Aetna Inc. is a diversified health care benefits company that provides healthcare and related benefits, serving health care members, dental members, and group insurance customers. The Company offers medical, pharmacy, dental, behavioral health, group life and disability plans, and medical management capabilities and health care management services for Medicaid plans.