A CAT Executing Broker’s CAT fee is calculated by multiplying the number of the CAT Executing Broker’s executed equivalent shares traded in Eligible Securities by the applicable fee rate. There will be separate fee rates related to one or more Historical CAT Assessments and to CAT Fees related to Prospective CAT Costs. Fee rates are calculated as set forth in Section 11.3 of the CAT NMS Plan.

CAT invoices will contain separate line items for fees related to each Historical CAT Assessment and CAT Fees related to Prospective CAT Costs.  Initially, CATLLC will collect a Prospective CAT Fee, referred to as CAT Fee 2024-1 and a fee related to certain Historical CAT Costs, referred to as Historical CAT Assessment 1. Additional fees related to other Historical CAT Costs and Prospective CAT Costs are anticipated to be introduced at a later time.  As a result, the initial CAT invoices will only include fees related to CAT Fee 2024-1 and Historical CAT Assessment 1.