Refers to extending an insurance policy’s aggregate limit of liability over two or more policy periods. A stretched aggregate is typically used in one of two different contexts. First, a multiyear policy may be subject to a single aggregate limit of liability for the entire multiyear policy period (perhaps subject to a limit of liability reinstatement provision). Second, if upon expiration of a single year policy period the insurer is uncomfortable for underwriting reasons with renewing the policy with a new fresh limit of liability, the insurer may agree to renew the policy without a new aggregate limit of liability and merely extend or stretch the preexisting aggregate limit of liability to the new policy period as well. In either case, the stretched aggregate constitutes the insurer’s maximum liability for all loss on account of all claims first made during the extended or multiyear policy period.