C, Citigroup, Inc, NYSE 期權優勢

翻譯成中文其内容大致是這樣：
C, Citibank 還是環球最具投資吸引力的投資買賣股項。。。。。Citibank 現在的買賣價格是美元23，如果你認爲Citibank是在上漲的趨勢你可以選擇購買六月份20號到期的期權，其期權价是USD4，1張合約為100股等於USD400。你買賣的風險亦只是這美元400。如果說你買母股Citibank則是USD23*100股=USD2300，若以10%作爲止虧點的話，那麽2300*10%=USD230 大概相當於買賣期權金USD400的60%。如果以ROI來衡量的話，期權買賣則能夠發揮其杠杠效益以致達到最大的回報率。

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