Philip Fisher wrote the greatest growth investing framework ever built and his 15 filters are still very relevant but it was written for a world that no longer functions the way he describes
I read Common Stocks and Uncommon Profits and analysing one specific company through this framework helped me see things with a different lens
Here’s what Fisher got right, where his filters break, and how I’m thinking about it differently.
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TL;DR
- We're at Level 3 — autonomous, not assisted
- AI is better than most investors on data
- Human edge = novelty, judgment, skin in game
- Don't go all-in. Don't stay all-out
- It moves faster than we can adapt
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I plan to do similar insights on under-researched companies so follow for more.
Comment if you have any further questions or DM to discuss.
Note: for educational purpose only, not investment advice.
#tatasierra#divgitts
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Key monitorables for investors:
• Exports > 20% consistently
• New AT/DCT orders
• Deployment of the cash pile (US plant or acquisition)
• EV utilisation >30% in H2 FY26
If these inflect, Divgi moves from Asset Indigestion → Operating Leverage Explosion.