請問甚麼是「押空」?一般投資如何大賺呢?

各位先進好

我看到一則新聞(如下),但不知道「押空」的意思。

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在日本政府促貶日圓、意圖提振經濟之際,放空日圓成為過去3個月來華爾街最火熱的交易,一些美國避險基金大舉押空日圓,從中大賺,像索羅斯就藉此進帳近10億美元。

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有人可以幫我解惑嗎?

感謝!

Update:

感謝Gary博士的回答,為了不要一知半解,我將英文翻成中文,請您糾正我的理解好嗎?

就是「賣空」(sell short)。

基本上,在交易時,「賣空」意味你預期買進的證券將貶值,然後從事這樣的投資。

「賣空」的用意是,你賣掉自己並不擁有的證券(你向金控公司借出證券)。然後當價格下降時,你買回證券以保留所擁有的證券。

價格的降幅,減去所有的手續費與稅費,將是你的收益。

畫底線的地方不太懂耶,「借出證券」為什麼是「賣掉自己並不擁有的證券」?

能請大師再次解惑嗎?

2 Answers

Rating
  • Gary
    Lv 7
    8 years ago
    Favorite Answer

    It is known as sell short.

    Basically, in trading, selling short means you anticipate the security you are buying will decrease in value and then you make such investment.

    What sell short does is you sell the security that you don't have (You borrow from the Brokerage firm). Then when the price drops, you buy the security back to cover the security you owe.

    The drop in price, minus all necessary fees and taxs, will be your profit.

    2013-02-15 18:38:16 補充:

    You get the idea right, except the last portion - you buy the security in order to repay the firm (as you borrow the security and sell it in advance).

    2013-02-15 18:40:52 補充:

    Let's use your example.

    So when Japanese Yen is being dumped, those investors will get U.S. Dollars back.

    But they never own any Japanese Yen at all. So how can they dump a currency that they don't own? The answer is they borrow the currency from those who have it, and then sell it.

  • 手新
    Lv 7
    8 years ago

    當你作多時,買低賣高

    例如,買一張股票80,到了100,出脫

    是為賺取價差.你是看好一個標的

    買了一張卷,實際持有的

    最後進行賣出,賣出的同時

    你也不持有這張卷了.

    賣空就是先賣高再買低

    舉個例子,我看空台XX,目前為100元.

    我認為會到80,但我手上沒有這張卷

    所以我跟你借一張,

    最後到了80,那麼這中間的差價是我所要的

    最後我也還你這張卷,物歸原主

    你拿這張券的同時,只是手上的價值從100變為80

    但你還是有這張券

    而我只是作出借的動作,以及還的動作

    借呢,也有人稱借券,或融券

    還呢,也有人稱回補,或券補

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