Cero Lab

Cero Lab

Home
Notes
Primers
Journal and Rejected Ideas
Current Position & Watchlist
Exited Position
About

Exited position

The Art of Saying No - UA: Under Armour
Why I'm Passing on Under Armour: A Case Study in Investment Discipline
Jan 23 • Felix
19 Nov 2023 - Imperial Petroleum ($IMPP)
🔑 Introduction
Dec 13, 2025 • Felix
© 2026 Felix Tan · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture