投資要看盈虧比, 這裏舉幾個例子

本帖於 2025-02-20 19:41:15 時間, 由普通用戶 三心三意 編輯

Looking out 12 month....

NVDA: max upside that I can see is $200 (maybe it can go higher, but I just could not see it).

  • buying at 140-150 net only 33% to 45% upside. Not super attractive -- 所以在這裏不需要激進
  • buying at 110-130 improves profit to 90% to 70%. This is becoming attractive

BA: max upside could be $250 if this thing turns around

  • buying at 150 or below net 60% upside, attractive
  • buying near 180-200 net 25%-45% upside, Not super attractive

TSLA: max upside could be 700

  • buying at 250 or below has 200% upside, hugely attractive
  • buying at 350 has a 100% upside, very attractive
  • buying at 450 reduce upside to 55%, not super attractive

Of course, we should also model the probability into the above scenarios, but even this simple model can help to decide how aggressive you want to be.

This is the reason I am still on the fence with BA above 180 price.

所有跟帖: 

你有了這樣一個大致的輪廓,接下來就看波浪選入點了 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:36:10

看來這個Elliott wave和fib很重要啊 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (167 bytes) () 02/20/2025 postreply 20:07:09

I would give AMD ~140 by the end of the year -任靜鍋-- 給 任靜鍋- 發送悄悄話 任靜鍋- 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:38:27

That‘s fine. 我隻是舉個例子。 每個人自己把參數放進去,自己負責。但這樣的模型對誰都有用 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:40:22

這也是為什麽我反複說亮線在140-150入場英偉達太激進 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:38:28

長線總得入場吧,買貴點就貴點,準備拿一年以上的,哈哈,我還指望200呢 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (218 bytes) () 02/20/2025 postreply 19:41:51

我會等。如果最好結果是200,那就是說在最理想的情況下,140進也隻能賺45%,不是最優的投資 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:45:20

問題是當時我並不知道它會不會一騎絕塵追不上啊,哈哈 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:47:07

如果再把別的概率放進去,回報遠比45%低 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:46:38

如果兩年能有45%的回報,我已經很高興了,更何況還可以在120加倉 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:48:53

不能這麽講,投nvda就是投龍頭呀,前景明確和穩定 -cnrhm2017- 給 cnrhm2017 發送悄悄話 cnrhm2017 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:49:48

所以我說還要把概率加到裏麵啊 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:52:46

你指的是什麽概率?哈哈 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:56:07

每一個假設都不是一定的。比如說你可以設70%的概率給英偉達@200,但50%的概率給特斯拉@700 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 19:59:24

明了,大師的意思是要進特斯拉 -才迷- 給 才迷 發送悄悄話 才迷 的博客首頁 (0 bytes) () 02/20/2025 postreply 19:59:57

LOL, no. 我是說每個人自己應該有這麽一個模型。 至於具體目標價和百分比,自己決定 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 20:03:36

Joking... but good discussion,前幾天我賣meta最劃算,不到一個月就16% -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (188 bytes) () 02/20/2025 postreply 20:04:57

嗯,META 和 PLTR 都是短期嚴重超買了 -三心三意- 給 三心三意 發送悄悄話 (0 bytes) () 02/20/2025 postreply 20:10:34

也是timing,我試了一下,在高點火中取栗就跑,還成功了,哈哈,過幾天再買再賣 -BrightLine- 給 BrightLine 發送悄悄話 BrightLine 的博客首頁 (18 bytes) () 02/20/2025 postreply 20:13:59

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