buy side noun2 •The sector of the finance industry that assists investors and investing institutions in purchasing products from the sell side.The sell side exists only because the buy side trades before we can understand when the sell side is profitable. — 2003 •A model of e-commerce in which an institution uses a software application to electronically streamline the purchasing process.The buy side model has one company buying products and services from many sellers. — 2008 formsbuy sides
