This document summarizes Aetna's projected financial information for 2008 and preliminary guidance for 2009, including: 1) Projected 2008 operating earnings per share of $3.90 to $3.95 and 2009 growth of 3% to 5% over 2008. 2) Projected improvement in operating expense ratio for 2008 and medical membership growth in 2008 and 2009. 3) Preliminary guidance notes key factors like increased pension expense and medical cost trend could impact 2009 projections. The summary provides Aetna's projected metrics for 2008 and preliminary 2009 guidance as of October 29, 2008, but notes the information should be considered as of the date provided and is not guaranteed.