9 Computerized trading systems, namely, computer programs and computer software for electronically trading securities; computerized trading systems, namely, computer programs and computer software for electronically trading in energy products, oil and oil derivatives; electronic trading systems, namely, computer programs and computer software, and post-trade systems, namely, computer programs and computer software, electronic trading systems, namely, computer programs and computer software, hardware and software used for matching over the counter trades (O TC) trades and the submission of trades to post-trade service providers in connection with post-trade services in the financial markets, capture and matching of trade related data and trade tickets, transaction settlement services, netting and trade allocation services, trade and account reconciliation services, trade confirmation services, messaging services relating to post-trade activities, credit services and calculation and monitoring of credit limits and credit utilization; hybrid voice and electronic trading systems consisting of telephone lines, dealer screen displays enabling dealer-brokers and institutions to communicate orders via messenger platforms, telecommunications equipment or software program; hybrid voice and electronic trading systems consisting of dealer screen displays enabling dealer-brokers and institutions to communicate orders via messenger platforms and software for trading in energy products, oil and oil derivatives; electronic publications in the nature of newsletters downloadable from the Internet, extranets or other communications network in the field of trading securities