The "Trading" part of S&T has been explained here. What about the "Sales" part?

<p>Sales–take crappy stuff the firm does not want to hold and attempt to dump it on unsuspecting people who are dumb enough to trust you. </p>

<p>[Goldman</a> Sachs and Others Investigated for Betting Against Securities They Created, page 1](<a href=“AboveTopSecret.com - Conspiracy Theories, UFOs, Paranormal, Politics, and other "alternative topics" - home page for Friday, January 26, 2024”>Goldman Sachs and Others Investigated for Betting Against Securities They Created, page 1)</p>