買指數型ETF的槓桿方式 - 理財
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By Queena
at 2021-07-25T14:37
at 2021-07-25T14:37
Table of Contents
版上各位先進好
前陣子剛看完life cycle investing
這陣子在研究哪種開槓桿方式比較穩健
目前看下來似乎每種方法都有相對的缺點
一. 信貸
以1.31% 7年 借100萬來說好了
因為信貸年限不夠長,而且借貸期間要還本金
變相之後每個月能投資的錢變少了
“假設報酬率每年6%”
舉例:A每個月能投資3萬,如果借100萬 7年間本息攤還 ,就變成了期初能投資100萬,但
因爲每個月要還$12465,所以每個月投資金額變成剩$17535,理想的狀況是7年後借錢會
多賺25萬,但注意這是假設股市是每年以6%穩定成長得出的結果,實際的股市不是那麼美
好的,而其實我們只要每個月多投資2000,也能達到跟借錢一樣的報酬。
https://i.imgur.com/wpKhMXs.jpg
個人認爲借信貸是把資金壓在某個時間點,反而違背life cycle investing觀念
信貸比較好的用法應該是抄底的時候用XD
二. 槓桿型ETF
例如之前版上討論過的UPRO+TMF
用長年期債券對沖掉槓桿型ETF的波動,這個策略有兩個前提
1.未來股市及長天期債券要繼續維持負相關,否則TMF無法對沖掉UPRO的波動。
2. 美國持續低利政策,過去利率一路下調,債市才有今天的表現,一旦遇到到升息,UPR
O跟TMF是有可能同時下跌的。
這邊提供一些探討TMF+UPRO的文章,有興趣的朋友可以看一下
https://www.physixfan.com/40-upro-60-tmf/
https://www.physixfan.com/gangganjijindesunhaowentiweishenmeuprohetmfkeyichang
qichiyou/
槓桿型ETF缺點有三
1.因為是追蹤每日報酬,背後是用期貨的方式去實現槓桿的,因此會產生轉倉成本。
2.波動會使槓桿ETF造成損耗。
3.內扣費用通常較高。
結論:與其使用槓桿ETF不如直接買期貨。
三.選擇權leap call
透過買入長期深度價內選擇權,到期時再換一個約的做法來長期持有,但選擇權一樣有幾
個問題。
1. bid-ask spread: 長期深度價內選擇權因為交易量小,所以bid-ask spread通常比較
大,例如VTI的option在7/23時bid-ask spread是4.2%,每次換約時都可能損失一部份本
金。
2. 低機率的股價低於Strike pirce,雖然長期深度價內選擇權的strike一般會抓當前股
價的一半(例如VTI=225,strike=110),但如果遇到股災股價掉到110以下,這個option
可能就剩一點價值,形同被強制斷頭。
3. 隱含利率(這部分計算我不太懂,如果有懂的板友請幫忙補充)
四.期貨:
同樣的有轉倉成本,而且保證金該放多少是關鍵,股災時拿捏不好會被強制平倉,而且與
選擇權共同的缺點是非美國市場交易量實在太小了,很難進行全球配置。
五.理財型房貸、增貸:
目前研究下來理財型房貸應該是比較好的做法,資金運用比較彈性,最大的缺點就是要先
有房XD
如果關於以上內容有講錯的地方,再麻煩各位告知修正了,非常感謝!
-----
Sent from JPTT on my iPhone
--
前陣子剛看完life cycle investing
這陣子在研究哪種開槓桿方式比較穩健
目前看下來似乎每種方法都有相對的缺點
一. 信貸
以1.31% 7年 借100萬來說好了
因為信貸年限不夠長,而且借貸期間要還本金
變相之後每個月能投資的錢變少了
“假設報酬率每年6%”
舉例:A每個月能投資3萬,如果借100萬 7年間本息攤還 ,就變成了期初能投資100萬,但
因爲每個月要還$12465,所以每個月投資金額變成剩$17535,理想的狀況是7年後借錢會
多賺25萬,但注意這是假設股市是每年以6%穩定成長得出的結果,實際的股市不是那麼美
好的,而其實我們只要每個月多投資2000,也能達到跟借錢一樣的報酬。
https://i.imgur.com/wpKhMXs.jpg

個人認爲借信貸是把資金壓在某個時間點,反而違背life cycle investing觀念
信貸比較好的用法應該是抄底的時候用XD
二. 槓桿型ETF
例如之前版上討論過的UPRO+TMF
用長年期債券對沖掉槓桿型ETF的波動,這個策略有兩個前提
1.未來股市及長天期債券要繼續維持負相關,否則TMF無法對沖掉UPRO的波動。
2. 美國持續低利政策,過去利率一路下調,債市才有今天的表現,一旦遇到到升息,UPR
O跟TMF是有可能同時下跌的。
這邊提供一些探討TMF+UPRO的文章,有興趣的朋友可以看一下
https://www.physixfan.com/40-upro-60-tmf/
https://www.physixfan.com/gangganjijindesunhaowentiweishenmeuprohetmfkeyichang
qichiyou/
槓桿型ETF缺點有三
1.因為是追蹤每日報酬,背後是用期貨的方式去實現槓桿的,因此會產生轉倉成本。
2.波動會使槓桿ETF造成損耗。
3.內扣費用通常較高。
結論:與其使用槓桿ETF不如直接買期貨。
三.選擇權leap call
透過買入長期深度價內選擇權,到期時再換一個約的做法來長期持有,但選擇權一樣有幾
個問題。
1. bid-ask spread: 長期深度價內選擇權因為交易量小,所以bid-ask spread通常比較
大,例如VTI的option在7/23時bid-ask spread是4.2%,每次換約時都可能損失一部份本
金。
2. 低機率的股價低於Strike pirce,雖然長期深度價內選擇權的strike一般會抓當前股
價的一半(例如VTI=225,strike=110),但如果遇到股災股價掉到110以下,這個option
可能就剩一點價值,形同被強制斷頭。
3. 隱含利率(這部分計算我不太懂,如果有懂的板友請幫忙補充)
四.期貨:
同樣的有轉倉成本,而且保證金該放多少是關鍵,股災時拿捏不好會被強制平倉,而且與
選擇權共同的缺點是非美國市場交易量實在太小了,很難進行全球配置。
五.理財型房貸、增貸:
目前研究下來理財型房貸應該是比較好的做法,資金運用比較彈性,最大的缺點就是要先
有房XD
如果關於以上內容有講錯的地方,再麻煩各位告知修正了,非常感謝!
-----
Sent from JPTT on my iPhone
--
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By Wallis
at 2021-08-28T03:49
at 2021-08-28T03:49
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By Mason
at 2021-08-28T18:44
at 2021-08-28T18:44
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By Delia
at 2021-08-29T09:39
at 2021-08-29T09:39
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By Edward Lewis
at 2021-08-30T00:33
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at 2021-08-30T15:28
at 2021-08-30T15:28
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By Kama
at 2021-08-31T06:23
at 2021-08-31T06:23
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By Doris
at 2021-08-31T21:17
at 2021-08-31T21:17
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