Chicago Mercantile Exchange - CME
  
The futures and options exchange in the heart of the Chicago Loop. CME is a hub for trading derivatives tied to the agriculture, energy, stock indices, foreign exchange, interest rates, metals, real estate, and weather markets.
There are plenty of legendary stories about commodity trading in the “pits” of CME. However, the introduction of digital trading operations has largely diminished the trading floor to fewer traders than it used to be.
The “Merc” was founded in 1898 as the “Chicago Egg and Butter Board.” It would receive a badly needed name change in 1919.