IEX monopoly under threat, heres why! IEX monopoly under threat, heres why! One of such companies that comes first to mind when we talk about moat is Indian Energy Exchange Ltd (IEX). Karan Dsij / Friday, July 8, 2022 / Article rating: 3.7 However, there is a new twist in this tale now and that is the emergence of the new power exchange in the country - Hindustan Power Exchange (HPX). Backed by BSE and Power Trading Corporation (PTC).