你不該定期定額 - 股票

By Kristin
at 2020-04-21T16:48
at 2020-04-21T16:48
Table of Contents
※ 引述《rial (deoo)》之銘言:
回文的大概 我先前的 文章底下附件沒看
"所以你是假定投資人一定有足夠的資金買到足夠的份額
這個前提就不現實啊
假設投資人為了讓自己有足夠資金去應付單月大跌的狀況,
而把一單位的資金降的很低(如你說的一單位1000)
那萬一很久都沒有大跌的狀況發生呢?
那等於實際投入的資金非常少,績效可能比每月投入5000的定期定額還少"
大概就是說 資金不夠的問題
還有一個說是賭博!!?
那我前面用 布朗運動與蒙地卡羅做 模擬 就白做了
過去十年月報酬率次數 以一單位 5000來算
單月跌幅 次數 需買進金額
-14.0% 1.0 70,000
-12.0% - 60,000
-10.0% 2.0 50,000
-8.0% 2.0 40,000
-6.0% 4.0 30,000
-4.0% 7.0 20,000
-2.0% 11.0 10,000
0.0% 15.0 -
2.0% 32.0 -
4.0% 32.0 -
6.0% 11.0 -
8.0% 5.0 -
10.0% 1.0 -
我不懂甚麼叫做需要 無限資金??
月報酬跌2%次數最多,也就買一萬,這月跌最多 也就7萬。
如果十年後想要有幾百萬的資產,難道只想存每次幾千嗎?
此外沒有買的時間幹嘛,存現金阿
--
回文的大概 我先前的 文章底下附件沒看
"所以你是假定投資人一定有足夠的資金買到足夠的份額
這個前提就不現實啊
假設投資人為了讓自己有足夠資金去應付單月大跌的狀況,
而把一單位的資金降的很低(如你說的一單位1000)
那萬一很久都沒有大跌的狀況發生呢?
那等於實際投入的資金非常少,績效可能比每月投入5000的定期定額還少"
大概就是說 資金不夠的問題
還有一個說是賭博!!?
那我前面用 布朗運動與蒙地卡羅做 模擬 就白做了
過去十年月報酬率次數 以一單位 5000來算
單月跌幅 次數 需買進金額
-14.0% 1.0 70,000
-12.0% - 60,000
-10.0% 2.0 50,000
-8.0% 2.0 40,000
-6.0% 4.0 30,000
-4.0% 7.0 20,000
-2.0% 11.0 10,000
0.0% 15.0 -
2.0% 32.0 -
4.0% 32.0 -
6.0% 11.0 -
8.0% 5.0 -
10.0% 1.0 -
我不懂甚麼叫做需要 無限資金??
月報酬跌2%次數最多,也就買一萬,這月跌最多 也就7萬。
如果十年後想要有幾百萬的資產,難道只想存每次幾千嗎?
此外沒有買的時間幹嘛,存現金阿
--
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