life cycle investment vs 買房投資 - 投資
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By Charlotte
at 2022-04-09T19:16
at 2022-04-09T19:16
Table of Contents
※ 引述《Intension (心感)》之銘言:
: 諾貝爾經濟學獎得主的獲利公式有提到用leaps call開槓桿,
容我構造一個用LEAPS做Lifecycle investing的例子,參考看看
(以下LEAPS的槓桿,控制在2~3倍之間)
考慮一個30歲的人,現有500萬存款
預計工作到65歲,每年能存100萬。
預計生涯總資產約 (65-30)*100 + 500 = 4000萬
按照60%股票配置, 4000 x 0.6 = 2400萬
目前SPY大約是450
現有存款500萬,再信貸300萬,共800萬
SPY 300 DEC 2024 Call 假設Ask是 175
800萬可以買入15.7口 (方便起見,假設可以買入非整數的數量)
曝險約 2048萬台幣,距離目標2400萬還差一些。
===三年後===
信貸剛好由薪水全部還清
Scenario 1: SPY價格 300
選擇權歸0,資金歸0,大俠請重新來過。
預計生涯總資產3200萬,目標股票配置 1920萬
=> 再信貸300萬,買入 SPY 200 DEC 2027 Call。
曝險約770萬
Scenario 2: SPY價格 450
選擇權結算價值150,資金687萬
預計生涯總資產是 3200 + 687 = 3887萬,目標股票配置2332萬
=> 可再信貸300萬,以191買入 SPY 280 DEC 2027 Call,17.8口
曝險約2323萬,大致達標
Scenario 3: SPY價格 600
選擇權結算價值300,資金1366萬
預計生涯總資產是 3200 + 1366 = 4566萬,目標股票配置2740萬
=>
1) 不必信貸,買入 SPY 320 DEC 2027 Call,曝險大致達標
2) 信貸300萬,以500萬買入SPY現股,其餘資金買入SPY 300 DEC 2027 Call
======
如果覺得上面的例子很可怕... it's probably not for you.
LEAPS call不會被追繳保證金,且不會跌到負的
如果打算槓桿撐到極限,這當然是個很大的優點
但如果只打算用個1.5倍或者1.2倍槓桿
我實在不覺得有使用LEAPS call的必要性
--
So stand by your glasses steady,
Here’s good luck to the man in the sky,
Here’s a toast to the dead already,
Three cheers for the next man to die.
--
: 諾貝爾經濟學獎得主的獲利公式有提到用leaps call開槓桿,
容我構造一個用LEAPS做Lifecycle investing的例子,參考看看
(以下LEAPS的槓桿,控制在2~3倍之間)
考慮一個30歲的人,現有500萬存款
預計工作到65歲,每年能存100萬。
預計生涯總資產約 (65-30)*100 + 500 = 4000萬
按照60%股票配置, 4000 x 0.6 = 2400萬
目前SPY大約是450
現有存款500萬,再信貸300萬,共800萬
SPY 300 DEC 2024 Call 假設Ask是 175
800萬可以買入15.7口 (方便起見,假設可以買入非整數的數量)
曝險約 2048萬台幣,距離目標2400萬還差一些。
===三年後===
信貸剛好由薪水全部還清
Scenario 1: SPY價格 300
選擇權歸0,資金歸0,大俠請重新來過。
預計生涯總資產3200萬,目標股票配置 1920萬
=> 再信貸300萬,買入 SPY 200 DEC 2027 Call。
曝險約770萬
Scenario 2: SPY價格 450
選擇權結算價值150,資金687萬
預計生涯總資產是 3200 + 687 = 3887萬,目標股票配置2332萬
=> 可再信貸300萬,以191買入 SPY 280 DEC 2027 Call,17.8口
曝險約2323萬,大致達標
Scenario 3: SPY價格 600
選擇權結算價值300,資金1366萬
預計生涯總資產是 3200 + 1366 = 4566萬,目標股票配置2740萬
=>
1) 不必信貸,買入 SPY 320 DEC 2027 Call,曝險大致達標
2) 信貸300萬,以500萬買入SPY現股,其餘資金買入SPY 300 DEC 2027 Call
======
如果覺得上面的例子很可怕... it's probably not for you.
LEAPS call不會被追繳保證金,且不會跌到負的
如果打算槓桿撐到極限,這當然是個很大的優點
但如果只打算用個1.5倍或者1.2倍槓桿
我實在不覺得有使用LEAPS call的必要性
--
So stand by your glasses steady,
Here’s good luck to the man in the sky,
Here’s a toast to the dead already,
Three cheers for the next man to die.
--
Tags:
投資
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