美股APPS SQ CRWD 多 - 股票

By Rae
at 2021-02-06T21:21
at 2021-02-06T21:21
Table of Contents
想講一下決策
# 一生中只能買十檔股票
Munger 在書中 (Poor Charlie Munger’s Almanack) 說:如果一生中只能買十檔股票,則大多數人的投資報酬率會高很多。
我在前兩篇寫過 Jesse Livermore 說最難的是耐心。這和 Munger 說的其實是一體兩面。
如果有觀察我的作法,應該不難發現我很反對進進出出。如果一年做200次決策,則根據定義,有100個決策的品質是低於中位數。要提升品質很簡單:少做一點這一百個低於中位數的事。
人是無法擊敗統計學的:只要量大,大數法則就會把你拉回平均值。買的標的太多、進出的次數太多,都是讓大數法則把你拉回市場平均的好機會。
我一個月最多只能找到一個到兩個好機會。如果買一支股票可以賺2%,我認為最難的事情之一就是告訴自己這不值得買。等發現可以賺50%,100%, 200%的公司再下重手。耐心是最難的。願意放掉還不錯的機會才能抓住超棒的機會。
另外這不適用挑了一家公司以後 dollar cost averaging:唯一的決定就是要買哪家公司,有錢就買這件事本身並不算是進進出出,反而是好事。
我個人的作法
以我自己的作法來講,我之前會把占比太高的個股賣掉一點調節,但三個月前我發現這也是隱形投報率殺手之一:如果真的有好標的,則我該做的事是把落後的個股整支砍掉轉到好公司,而不是把1%移來移去。如果要調節比例,我用新的資金慢慢調節就好。
股票市場跟工作賺錢最大的不同點是,你工作得越勤快,錢拿得越多。但在股票市場,越懶惰的人賺得越多。我寧願當懶惰人而不是勤快人。
當然,常常換標的或進進出出不代表投報率會不好。這跟我自己對短期的預測能力只有PR25有關。所以我才有下一個作法:
# 記錄自已的投報率
"好"這件事本身是相對的:
過去六個月
- 主動基金ARKK報酬率是81.2%
- 被動基金QQQ是22.1%
平均超過 50%
換句話說,投資單一個股的投資人,如果總股市資產報酬率過去六個月沒有超過 50% 的,根本是在騙自己,直接一半買 ARKK 一半買 QQQ 放著等漲就好。買個股時一定要檢視自己到底在買賣股票時的想法如何。不然買個股這件事是浪費時間。
根據我的猜測,不少版友並沒有追蹤自己總資產的投報率,只看單一個股。這很危險。你就算一支股票賺了500% 5 bagger 但占比只有2%,對整體總資產影響只有10%。如果我把美股每支股票都買1股,我到年底一定會有一支破10,000%報酬率的股票。但這對我有意義嗎?
如果沒有記錄自己投報率習慣的,建議馬上開始。現在、立刻、馬上。這是最重要的投資習慣之一。關鍵字: Time Weighted Return 、Compound Annual Growth Rate (CAGR),網路上模板很多,用 Google Sheets 就可以免費自己做一個。最少最少也要記錄自己每月總資金的大小。
開公司的人一定要注意自己公司的收益和現金流。把投資想成是開副業或許有幫助。
# 推文來討論
過去六個月我發了不少文章,如果這些文章對版上板友有益處,我滿好奇到底是哪邊有幫助?歡迎在推文回覆一下讓我了解。
-----
Sent from JPTT on my iPhone
--
# 一生中只能買十檔股票
Munger 在書中 (Poor Charlie Munger’s Almanack) 說:如果一生中只能買十檔股票,則大多數人的投資報酬率會高很多。
我在前兩篇寫過 Jesse Livermore 說最難的是耐心。這和 Munger 說的其實是一體兩面。
如果有觀察我的作法,應該不難發現我很反對進進出出。如果一年做200次決策,則根據定義,有100個決策的品質是低於中位數。要提升品質很簡單:少做一點這一百個低於中位數的事。
人是無法擊敗統計學的:只要量大,大數法則就會把你拉回平均值。買的標的太多、進出的次數太多,都是讓大數法則把你拉回市場平均的好機會。
我一個月最多只能找到一個到兩個好機會。如果買一支股票可以賺2%,我認為最難的事情之一就是告訴自己這不值得買。等發現可以賺50%,100%, 200%的公司再下重手。耐心是最難的。願意放掉還不錯的機會才能抓住超棒的機會。
另外這不適用挑了一家公司以後 dollar cost averaging:唯一的決定就是要買哪家公司,有錢就買這件事本身並不算是進進出出,反而是好事。
我個人的作法
以我自己的作法來講,我之前會把占比太高的個股賣掉一點調節,但三個月前我發現這也是隱形投報率殺手之一:如果真的有好標的,則我該做的事是把落後的個股整支砍掉轉到好公司,而不是把1%移來移去。如果要調節比例,我用新的資金慢慢調節就好。
股票市場跟工作賺錢最大的不同點是,你工作得越勤快,錢拿得越多。但在股票市場,越懶惰的人賺得越多。我寧願當懶惰人而不是勤快人。
當然,常常換標的或進進出出不代表投報率會不好。這跟我自己對短期的預測能力只有PR25有關。所以我才有下一個作法:
# 記錄自已的投報率
"好"這件事本身是相對的:
過去六個月
- 主動基金ARKK報酬率是81.2%
- 被動基金QQQ是22.1%
平均超過 50%
換句話說,投資單一個股的投資人,如果總股市資產報酬率過去六個月沒有超過 50% 的,根本是在騙自己,直接一半買 ARKK 一半買 QQQ 放著等漲就好。買個股時一定要檢視自己到底在買賣股票時的想法如何。不然買個股這件事是浪費時間。
根據我的猜測,不少版友並沒有追蹤自己總資產的投報率,只看單一個股。這很危險。你就算一支股票賺了500% 5 bagger 但占比只有2%,對整體總資產影響只有10%。如果我把美股每支股票都買1股,我到年底一定會有一支破10,000%報酬率的股票。但這對我有意義嗎?
如果沒有記錄自己投報率習慣的,建議馬上開始。現在、立刻、馬上。這是最重要的投資習慣之一。關鍵字: Time Weighted Return 、Compound Annual Growth Rate (CAGR),網路上模板很多,用 Google Sheets 就可以免費自己做一個。最少最少也要記錄自己每月總資金的大小。
開公司的人一定要注意自己公司的收益和現金流。把投資想成是開副業或許有幫助。
# 推文來討論
過去六個月我發了不少文章,如果這些文章對版上板友有益處,我滿好奇到底是哪邊有幫助?歡迎在推文回覆一下讓我了解。
-----
Sent from JPTT on my iPhone
--
Tags:
股票
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