索羅斯金融煉金術中的部位管理疑問 - 股票
By Christine
at 2018-07-25T15:45
at 2018-07-25T15:45
Table of Contents
日前閱讀索羅斯的金融煉金術看到一個段落不太理解
想請各位交易經驗豐富的前輩幫忙我理解一下下面這段論述
--------------------------------------------------------
"作為一般原則,我從不更動那些在至今仍然有效的觀點指導下所建立的部位,而更傾向
於在反方向建立新觀點所支持的部位。其結果就是一個脆弱的平衡,隨時都要進行修正
。如果平衡操作未能有力保護資產組合,我就只好砍掉多餘的部位以求生存。而如果平
衡操作取得成功,那我就可以在不犧牲中意部位的情況下贏得流動性。比如說,一開始
就建立了充足的投資部位,以後又建立了一個同樣規模的空頭部位,一次 20%的跌幅,
即令對多頭和空頭產生的影響完全一樣,但至少可以把我在多頭一方的投資額減少到 80
%,如果我及時地軋平了空頭部位,就可以保持主動順利出場,不過即使在軋平空頭時
遭受了損失,也總要比在不恰當的時機出售多頭部位好得多"
--------------------------------------------------------------------
我的理解是今天同時做多跟做空同一支股票,都假設100元的部位,
哪假如這支股票跌了20%,多頭的部位變成80元,空頭部位變成120元
如果把空頭整個停利,我就有120元落袋為安,
這時我就可以觀望何時該把多頭部位也出場
不曉得我的理解正不正確,而且還有兩個疑問
問題一,那我把空頭部位了結後,多頭部位繼續跌我不就虧大了?
問題二,為何退出空頭部位時遭受損失,也比不恰當時機出售多頭部位好?
我感覺索羅斯好像很不想動到他的多頭部位,不過不懂為什麼
以下附上英文原文
"As a general principle, I do not dismantle positions that are built on a
thesis that remains valid; rather, I take additional positions in the
opposite direction on the basis of the new thesis. The result is a delicate
balance that needs to be adjusted from moment
to moment. If the balancing act fails to protect the portfolio, I have to cut
back all around in order to assure survival. If the balancing act is
successful, I gain liquidity without having to sacrifice desirable positions.
To illustrate: if I start with a fully invested position
and then sell short an equal amount, a 20% decline, even if it affects the
longs and the shorts equally, leaves me only 80% invested on the long side.
If I cover my shorts at the right time, I come out way ahead, but even if I
cover my shorts with a loss I am better off than if I had sold my longs at
the wrong time. In practice, the operation is much more complex because the
balancing act is not confined to the stock market. "
--
Tags:
股票
All Comments
By Sarah
at 2018-07-26T17:21
at 2018-07-26T17:21
By Regina
at 2018-07-28T07:08
at 2018-07-28T07:08
By Tracy
at 2018-07-29T15:08
at 2018-07-29T15:08
By Faithe
at 2018-08-01T13:11
at 2018-08-01T13:11
By Eden
at 2018-08-04T15:55
at 2018-08-04T15:55
By Thomas
at 2018-08-06T09:13
at 2018-08-06T09:13
By Bethany
at 2018-08-08T03:35
at 2018-08-08T03:35
By Jessica
at 2018-08-10T03:40
at 2018-08-10T03:40
By Hedwig
at 2018-08-14T01:19
at 2018-08-14T01:19
By Iris
at 2018-08-14T23:21
at 2018-08-14T23:21
By Mason
at 2018-08-18T20:20
at 2018-08-18T20:20
By Tristan Cohan
at 2018-08-20T11:33
at 2018-08-20T11:33
By Dora
at 2018-08-23T07:18
at 2018-08-23T07:18
By John
at 2018-08-24T01:55
at 2018-08-24T01:55
By James
at 2018-08-28T17:50
at 2018-08-28T17:50
By Una
at 2018-08-29T02:44
at 2018-08-29T02:44
By James
at 2018-08-29T04:00
at 2018-08-29T04:00
By Gary
at 2018-09-02T04:57
at 2018-09-02T04:57
By Jacky
at 2018-09-02T14:50
at 2018-09-02T14:50
By Frederic
at 2018-09-05T22:59
at 2018-09-05T22:59
By Quanna
at 2018-09-10T01:58
at 2018-09-10T01:58
By Yedda
at 2018-09-13T23:39
at 2018-09-13T23:39
By Dora
at 2018-09-16T08:41
at 2018-09-16T08:41
By Harry
at 2018-09-19T12:24
at 2018-09-19T12:24
By Aaliyah
at 2018-09-22T04:52
at 2018-09-22T04:52
By Jessica
at 2018-09-23T06:52
at 2018-09-23T06:52
By Damian
at 2018-09-27T05:55
at 2018-09-27T05:55
By Linda
at 2018-09-29T14:53
at 2018-09-29T14:53
By Margaret
at 2018-10-04T14:19
at 2018-10-04T14:19
By Elvira
at 2018-10-06T19:33
at 2018-10-06T19:33
By Bethany
at 2018-10-11T10:35
at 2018-10-11T10:35
By Andy
at 2018-10-14T15:47
at 2018-10-14T15:47
By Daph Bay
at 2018-10-19T01:59
at 2018-10-19T01:59
By Liam
at 2018-10-23T12:43
at 2018-10-23T12:43
By Tom
at 2018-10-26T20:38
at 2018-10-26T20:38
By Audriana
at 2018-10-27T06:01
at 2018-10-27T06:01
By Barb Cronin
at 2018-10-30T14:36
at 2018-10-30T14:36
By Olga
at 2018-11-01T09:32
at 2018-11-01T09:32
By Sandy
at 2018-11-04T10:46
at 2018-11-04T10:46
By Cara
at 2018-11-06T08:49
at 2018-11-06T08:49
By Harry
at 2018-11-08T06:39
at 2018-11-08T06:39
Related Posts
4974 亞泰
By Aaliyah
at 2018-07-25T15:36
at 2018-07-25T15:36
國巨融資All in賠400萬 處理
By Steve
at 2018-07-25T15:34
at 2018-07-25T15:34
台灣智慧型手機市場6月份45萬支年衰退3成
By Hedda
at 2018-07-25T15:14
at 2018-07-25T15:14
謝金河:站上萬點這麼久還無感 是你自己
By Joseph
at 2018-07-25T15:07
at 2018-07-25T15:07
107年07月25日 三大法人買賣金額統計表
By Hamiltion
at 2018-07-25T14:58
at 2018-07-25T14:58