What do you mean by origination in sales & trading?
Banks have Sales desks, trading desks, but also lump debt origination into this S&T bridge.
How does Securitization and DCM differ from S&T? What does origination even mean? If you are an analyst/associate working in Securitization/DCM, are you working on deals like an investment banker? I'd assume you would just be on the debt side of things?