The Chicago Board Options Exchange (NASDAQ: CBOE), located at 400 South LaSalle Street in Chicago, is the largest U.S. options exchange with annual trading volume that hovered around 1.27 billion contracts at the end of 2014. CBOE offers options on over 2,200 companies, 22 stock indices, and 140 exchange-traded funds (ETFs). The Chicago Board of Trade established the Chicago Board Options Exchange in 1973. The first exchange to list standardized, exchange-traded stock options began its first day of trading on April 26, 1973, in a celebration of the 125th birthday of the Chicago Board of Trade. The CBOE is regulated by the Securities and Exchange Commission. CBOEs options contracts are cleared by the Options Clearing Corporation (OCC). As of approximately April 11, 2007, the Wall Street Journal estimates that globally the market capitalization of the derivatives markets (futures, options, swaps, etc.) exceeds 450 trillion dollars (while US stock exchanges have approximately 30 trillion and the rest of the worlds stock exchanges total to about another 20 trillion, to a total of about 50 trillion—while the global fixed income markets total to roughly 65 trillion).