Volume Spike Investor

Aetna Inc. (NYSE: AET) are down about 10 percent to $23.73 on premarket volume of about 3,700 shares as of 7:45 a.m. Eastern. The health insurer reported EPS ex items of 68 cents a share, 10 cents worse than analyst expectations. The company said earnings were affected by significantly higher commercial medical costs. Aetna guided fiscal 2009 EPS in a range of $2.75-2.90, vs. $3.53 consensus. Aside from earnings, Aetna is seeking to sell its pharmacy-benefit management business, The Wall Street Journal reported. Interested parties could include CVS Caremark (NYSE: CVS) and Medco Health Solutions (NYSE: MHS) and Express Scripts (Nasdaq: ESRX).