菜鸟求一道题目的解- about option

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strike price(cents/euro)    call   put

145                                   6.0   6.5

150                                   2.5   10

Question:  what's the payoff profile if have long 6 calls(x=150), short 3(x=145),long 7 puts(x=150),short 9 puts(x=145)?

Anybody can help? I don't know how to make the payoff profile without knowing the spot price? should I try all the spot price from 145-150? please help.. thank you!

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关键词：Option About Bout Out abo 题目 菜鸟 Option

short 3(x=145)，你这个应该是指的call

145以下，所有的call worthless，你net short 2 puts，相当于long 2 underlying

145到150，150的call worthless，145的put worthless，你short 3 calls，long 7 puts，相当于short 10 underlying

150以上，所有的put worthless，你net long 3 calls，相当于long 3 underlying

thanks. I know long is call. short is buy. but how can I get the payoff since there is no spot price? there is premium cost for each option, but no cost in the bank without the spot price... that's where I stucked... do u have any idea?

你不是知道4个价钱吗，又有买又有卖，可以知道你成本多少

然后你算在145和150两个点的盈亏，然后用直线连起来，145以下斜率是2，145到150是-10，150以上是3

that make sense.. thank you!