Fees
Each Nadex contract traded costs $0.90 to enter and $0.90 to exit. The fee is capped at $9, so purchasing 15 lots will still only cost $9 to enter and $9 to exit.

If you hold your trade until settlement and finish in the money, the fee to exit is assessed to you at expiry.

If you hold the trade until settlement, but finish out of the money, no trade fee to exit is assessed.

CBOE binary options are traded through various option brokers; each charge their own commission fee.

Pick Your Binary Market
Multiple asset classes are tradable via binary option. Nadex offers trading in major indices such as the Dow 30 (Wall Street 30), the S&P 500 (US 500), Nasdaq 100 (US TECH 100) and Russell 2000 (US Smallcap 2000). Global indices for the United Kingdom (FTSE 100), Germany (Germany 30) and Japan (Japan 225) are also available.

Trades can be placed on forex pairs: EUR/USD, GBP/USD, USD/JPY, EUR/JPY, AUD/USD, USD/CAD, GBP/JPY, USD/CHF, EUR/GBP, as well as AUD/JPY.

Nadex offers commodity binary options related to the price of crude oil, natural gas, gold, silver, copper, corn and soybeans.

Trading news events is also possible with event binary options. Buy or sell options based on whether the Federal Reserve will increase or decrease rates, or whether jobless claims and nonfarm payrolls will come in above or below consensus estimates. (For more on this topic, see Exotic Options: A Getaway From Ordinary Trading.)

The CBOE offers two binary options for trade. An S&P 500 Index option (BSZ) based on the the S&P 500 Index, and a Volatility Index option (BVZ) based on the CBOE Volatility Index (VIX).