An anonymous trading system includes a prime broker facility that allows a third party to trade on behalf of an institution. A switching device is formed over a substrate and then an insulating layer is formed over the substrate to cover the switching device. The vertical sealing mechanism sandwiches a cylindrical film conveyed by a pull-down belt mechanism, by the horn and the anvil, and seals the cylindrical film by applying ultrasonic vibrations to the cylindrical film. In addition, automated keyword searches run in the background that will alert monitors of misconduct or inappropriate language.