Victorhuo
2020-08-09 09:5906.單選題 收藏 標記 糾錯 A market maker is trading the following three (3) positions in call and put options which are identical with respect to their underlying stock price, the strike price and the maturities: long 100 ATM call options with a percentage delta of 0.6; short 60 ATM call options; and long 50 ATM put options. Which trade will neutralize the market maker's delta? A Buy 6.0 shares B Sell 6.0 shares C Buy 4.0 shares D Sell 4.0 shares 這題關(guān)于第三個option的detal值,put option的detal=call option-1,不是-0.4了么,long putdetal取值不是也是負數(shù),負負不是應該變成正了么?為何解釋還是負得detal?
所屬:FRM Part I 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個回答
Adam助教
2020-08-11 13:54
該回答已被題主采納
同學你好,沒錯
long對期權(quán)的delta的影響是正的
由于原來put的delta是-0.4,
long put,是+(-0.4)=-0.4
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追問
delete的取值不是long call為正,long put為負。short put為正,short call為負么?若這題問的是long call的話,我是否可以理解成最終答案會是正,也就是-(-0.6)這樣子?
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追問
-(-0.4)~
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追問
應該能聽懂我問的啥吧。數(shù)值本身正負不重要,最終正負才最最重要么?
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追答
不考慮買賣方向::(這和long是一樣的)
call是正值,put是負值
如果考慮買賣方向,
long對原值產(chǎn)生正的影響:long call是+(+)為正;long put是+(-)為負。
short對原值產(chǎn)生負的影響:short call是-(+)為負;short put是-(-)為正。
