"Timeline: Growth of the IntercontinentalExchange". Reuters. December 20, 2012. Retrieved August 4, 2013."Atlanta-based ICE operates four regulated futures exchanges, two over-the-counter markets and five clearing houses globally. Its growth from a small energy exchange since the early 2000s has been influential in the evolution of the derivatives markets since then, paralleling the rise of commodities as a mainstream asset class, the consolidation of the exchange industry, the disappearance of the floor trader with the move to all-electronic trading platforms and the growth of swaps clearing."
Greenberger, Michael (2008). "Energy Market Manipulation and Federal Enforcement Regimes". Congressional Testimony. Testimony presented at a hearing of the U.S. Senate Committee on Commerce, Science, and Transportation. 110th Congress, 1st Session (2008). University of Maryland. Retrieved May 1, 2010.
