On Aug. 28, 2018, Aspen Insurance announced that will be acquired by Apollo Global Management's new private equity fund, subject to various approvals. We believe that under Apollo's ownership Aspen is likely to preserve its strong business position and risk-based capital adequacy (according to our model) securely in the 'AA' range. We are therefore affirming our 'BBB+' rating on Aspen Insurance Holdings Ltd. and our 'A' ratings on Aspen's core subsidiaries. The negative outlook indicates that we could lower the ratings by one notch if Aspen does not improve its underwriting performance over the next 18-24 months to a level broadly in line with that of its peers. On Aug. 28, 2018, S&P Global Ratings affirmed its 'BBB+' long-term issuer