In terms of operation, bullish is expected to buy, and bearish is expected to buy. The profit calculation is the same as the spot when buying up, how much will increase in the period to earn, when buying falls, how much will fall in the period to earn In short, it is to use a very small principal to bet on the ups and downs of the future range, to obtain high returns. Recently, Bitoffer launched the strongest Ethereum option, with 0 margins, 0 handling fee, and no need to exercise.