Complex sentence: IntercontinentalExchange, Inc., known as ICE, is an American is an online commodities and futures marketplace, an marketplaces which trade futures and over-the-counter (OTC) energy and commodity contracts as well as derivative financial products.
Split into simpler sentences: IntercontinentalExchange, Inc., known as ICE, is an Americancommodity market and futures operator. ICE is an marketplaces which trade futures and over-the-counter (OTC) energy and commodity contracts as well as derivative financial products.