Loss history is a crucial component of any commercial insurance submission, as underwriters rely on past trends to estimate future loss activity and determine if an account falls within its risk appetite. A complete loss history comprises both closed claims, where the severity of the loss is clear, and, in many cases, open claims, where the final total incurred is unknown. Reserves set aside by the current carrier offer some information on open claim development, but reserving practices vary by carrier and are often inaccurate. As a result, open claims add an unwelcome degree of uncertainty to risk assessment, which can lead to adverse selection, pricing inaccuracy, or even missing out on profitable business.