TEXT-Fitch rates Allied World Assurance senior debt 'A-'

Sept 21 - Fitch Ratings has assigned ratings to Allied World Assurance Company Holdings, Ltd. (Allied World) as follows: --Issuer Default Rating (IDR) 'A'; --Senior debt 'A-'. Fitch has also assigned an 'A+' Insurer Financial Strength (IFS) rating to Allied World's property/casualty and reinsurance subsidiaries. A full rating list is shown below. The Rating Outlook is Stable. Fitch's rating rationale for the assignment of Allied World's rating reflects the company's history of strong underwri