Strategy 3
If the stock price is $790, both puts expire worthless and the investor keeps the $22.08 credit received per option plus any upside on the stock.
Any upside in the stock price is protected as there are no short calls in this strategy.
Capital Gain (unrealized) = 500,000 × ($790 – $750) = $20,000,000
Option Premia Received = 500,000 × $31.31 = $15,655,000
Option Cost Incurred = 500,000 × $9.23 = –$4,615,000
Profit = $20,000,000 + $15,655,000 – $4,615,000 = $31,040,000
计算的时候为啥期权的那一边也是*500,000份的股票的分数呢？ 期权不是有自己的每张代表100份么？500,000份的股票不是等于期权那边的数量应该是500份呢？
