Reletter
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美股老司機

Terry Cheng

Growth stocks and life learning

Platform
Substack
PricingOnly free issuesPublishesTwice weekly
Issues255Founded5 years agoLast Issue9 days ago
Active
Language
ZH-TW

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Artwork for 美股老司機

Latest Issues

IOT (增加信念)

Samsara 是美股中將 Physical AI 軟體化變現最成功的教科書級範本。

傳統大語言模型活在虛擬數字世界中,而 Samsara 則是將 AI 觸角延伸到卡車車隊,起重機,建築工地和倉庫等實體世界。它透過高度整合的硬體感知 + 雲端 AI 軟體 ,將原本極度傳統,依賴人力的實體營運轉化為高利潤,高壁壘的訂閱制商業模式。

Samsara 的核心不是單純賣 GPS 定位器,而是建立一個 感官(硬體) \ 大腦(AI 雲端) \ 行動(自動化工作流)的物理智慧體生態系...

9 days ago
49
1

BROS (增加信念)

目前正處於極其激進的擴張週期。

根據公司在 2025 年投資大會以及 2026 年最新財報所披露的戰略,其未來四年的核心開店計劃與長期藍圖如下:

2029 年達標 2,029 家店面

Dutch Bros 計畫在 2029 年前將全美總店數推升至 2,029 家。相較於 2026 年初約 1,136 家的規模,這意味著公司將在未來 3 到 4 年內將店面總數直接翻倍,淨增接近 1,000 家新店。

公司已將 2026 全年的開店目標上調至至少 181 到 185 家新...

15 days ago
40
1

分享 : 貝葉斯 vs. 斯多葛

貝葉斯的核心很簡單, 就是你對任何事情的相信程度,都應該是可以被新證據更新的概率,而不是固定的信念。

舉一個例子:

你去做健康檢查,某個癌症篩檢結果呈陽性。你立刻崩潰了, 完了,我得癌症了。

但貝葉斯會問你,等等,先想三件事:

- 先驗概率:這個癌症在人群中本來有多常見?(假設 1%)

- 檢測準確率:這個檢測有多可靠?(假設陽性時有 90% 是真的)

- 偽陽性率:沒病的人被誤判陽性的機率?(假設 9%)

算下來,你拿到陽性報告,真正得癌症的概率其實只有...

15 days ago
64
3

NOK (純粹看法, 務必自行研究)

Infinera Corporation(英飛朗)是一家全球領先的光通訊網路設備與先進光學半導體製造商,總部位於美國加州聖荷西。

該公司在光通訊領域的核心定位,是透過高度垂直整合的模式,自主研發從底層的光學晶片到上層的網路管理軟體,藉此解決網際網路流量暴增時的頻寬與功耗瓶頸。

Infinera 在光傳輸技術上有著極高的技術壁壘,主要體現在以下幾個方面:

- 大規模光子積體電路(Photonic Integrated Circuit, PIC)

這是 Infinera...

18 days ago
156
6

AVEX (純粹介紹,必須自己研究)

是一家專注於次世代國防科技與空降情報解決方案的美國軍工企業,總部位於加州 Solana Beach。

近年來,隨著地緣政治衝突加劇以及無人機技術(UAV)在現代戰爭中的核心地位確立,AVEX 憑藉其在無人系統,自動導航與 ISR(情報,監視與偵察)領域的深厚技術,迅速從傳統的國防承包商轉型為高成長的國防科技新星。

AEVEX 的業務主要分為兩大核心區塊:

  • 戰術系統: 這是目前公司最狂熱的成長引擎,專注於低成本、可消耗的自體攻擊無人機(Loitering Muni...
a month ago
68
7

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  • Terry Cheng

    “生活之所以美麗,並不是因為我們看到或做的事情。生活是美好的,因為我們遇到的人。”

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