In 2007, the Options Clearing Corporation proposed a rule change to allow binary options,[14] and the Securities and Exchange Commission approved listing cash-or-nothing binary options in 2008.[15] In May 2008, the American Stock Exchange (Amex) launched exchange-traded European cash-or-nothing binary options, and the Chicago Board Options Exchange (CBOE) followed in June 2008. The standardization of binary options allows them to be exchange-traded with continuous quotations.
Amex offers binary options on some ETFs and a few highly liquid equities such as Citigroup and Google. Amex calls binary options "Fixed Return Options" (FROs); calls are named "Finish High" and puts are named "Finish Low". To reduce the threat of market manipulation of single stocks, Amex FROs use a "settlement index" defined as a volume-weighted average of trades on the expiration day. Amex and Donato A. Montanaro submitted a patent application for exchange-listed binary options using a volume-weighted settlement index in 2005.[16]
CBOE offers binary options on the S&P 500 (SPX) and the CBOE Volatility Index (VIX).[17] The tickers for these are BSZ[18] and BVZ, respectively.[19] CBOE only offers calls, as binary put options are trivial to create synthetically from binary call options. BSZ strikes are at 5-point intervals and BVZ strikes are at 1-point intervals. The actual underlying to BSZ and BVZ are based on the opening prices of index basket members.
Both Amex and CBOE listed options have values between $0 and $1, with a multiplier of 100, and tick size of $0.01, and are cash settled.[17]
In 2009, Nadex, a U.S.-based binary options provider launched binary options on a range of forex, commodities and stock indices markets
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