NO.PZ2020021203000089
问题如下:
A trader feels that there will be a big jump in a stock price but is uncertain of the direction. Identify three trading strategies that the investor can implement to reflect his or her views.
选项:
解释:
The trader can try a short butterfly spread, a short calendar spread, a strangle, or a straddle.
short butterfly spread 具体是什么?