The tickers for these are BSZ and BVZ,.
Manipulation of price data to cause customers to lose is common. Withdrawals are regularly stalled or refused by such operations; if a client has good reason to expect a payment, the operator will simply stop taking their phone calls.
" Trades place wagers as to whether that will or will not happen. If a customer believes the price of a commodity or currency will be above a certain price at a set time, he buys the binary option.
If he believes it will be below that price, he sells the option.