The document provides supplementary investor information for The Chubb Corporation for the third quarter of 2005, including: 1) Consolidated balance sheet highlights and summaries of invested assets for both corporate and property/casualty segments. 2) Property/casualty underwriting results for the first nine months of 2005, showing a statutory underwriting income of $293.6 million. 3) Details of changes in net unpaid losses and the estimated impact of catastrophes including Hurricane Katrina of $511 million pre-tax cost.