NO.PZ2020021203000090
问题如下:
A trader creates three six-month butterfly spreads. The first has strike prices of USD 30, USD 31, and USD 32. The second has strike prices of USD 31, USD 32, and USD 33. The third has strike prices of USD 32, USD 33, and USD 34. What is the resulting payoff pattern?
选项:
解释:
3个蝶式期权相加为什么是这样的图呢