Admit Mistakes - Prompt d'Analyse IA

Use this Warren Buffett rule prompt to apply “Admettez vos Erreurs” to a specific company. It turns a vague opinion into a repeatable checklist: what facts you must verify, which assumptions matter most, what would invalidate the thesis, and the common misreads that create false certainty. Expect a written output you can save: a thesis summary, key risks, and next-step questions for filings and earnings calls. If a claim matters, require primary-source citations before you act. Educational only — not investment advice.

Prompt Complet

Vous êtes un analyste d'investissement formé au principe de Warren Buffett : « Admit Mistakes ». Votre tâche est d'analyser {Nom de l'Entreprise} à travers cette perspective spécifique.

## Contexte
Warren Buffett enseigne : « Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks. »

## Cadre d'Analyse

### 1. Évaluation de l'Application du Principe
- Comment ce principe s'applique-t-il spécifiquement à {Nom de l'Entreprise} ?
- Quels aspects de l'entreprise sont les plus pertinents pour « Admit Mistakes » ?
- Évaluez l'alignement : Fort / Modéré / Faible
- Sur quoi Warren Buffett se concentrerait-il en premier ?

### 2. Preuves Quantitatives
- Identifiez 3-5 métriques financières clés pertinentes
- Analysez ces métriques sur les 5-10 dernières années
- Comparez avec les pairs et les benchmarks historiques
- Les chiffres s'améliorent-ils, sont-ils stables ou se détériorent-ils ?

### 3. Analyse Qualitative
- Évaluez les facteurs non quantifiables que Warren Buffett examinerait
- Qualité de la gestion et alignement avec ce principe
- Dynamique de l'industrie et position concurrentielle
- Durabilité du modèle d'affaires selon cette perspective

### 4. Évaluation des Risques
- Quels risques ce principe met-il en évidence pour {Nom de l'Entreprise} ?
- Quels signaux d'alarme Warren Buffett identifierait-il ?
- Test de résistance : comment l'entreprise performerait-elle en conditions adverses ?
- Quel est le pire scénario selon cette perspective ?

### 5. Identification des Opportunités
- Quelles opportunités cette analyse révèle-t-elle ?
- Y a-t-il des forces cachées sous-évaluées par le marché ?
- Quels catalyseurs pourraient libérer de la valeur ?

### 6. Buffett Verdict
- {Nom de l'Entreprise} passe-t-elle le test de « Admit Mistakes » ?
- Note : 1-10
- Recommandation claire : Acheter / Conserver / Éviter
- Résumé en un paragraphe

## Format de Sortie
Présentez des données spécifiques dans chaque section. Terminez par un verdict décisif.

Related reading (close the loop)

Pick one path below to turn the output into a checkable, repeatable decision policy.

Educational only. Verify facts with primary sources and apply your own constraints.

ℹ️Ce contenu n'est disponible qu'en chinois et en anglais pour le moment.

Basic Questions

What major investment mistakes has Buffett made and how did he handle failure?
Buffett has publicly admitted multiple errors:

❌ Classic mistakes:
1. Buying Berkshire Hathaway itself — a declining textile mill
2. Missing Amazon and Google — outside his circle of competence
3. Investing in Dexter Shoes — paid with Berkshire stock, losing billions

✅ His approach:
- Publicly admits mistakes in annual shareholder letters
- Analyzes root causes (rather than making excuses)
- Turns every mistake into a decision framework improvement

Usage Tips

Is the AI's 1-10 rating reliable?
⚠️ AI's "mistake identification score" reflects how much the investment thesis has weakened, not a stock price prediction.

How to interpret:
- **8-10 (thesis strong)**: Original buy rationale largely intact — don't panic over short-term fluctuations, continue holding
- **5-7 (cracks appearing)**: Some buy reasons shaken — seriously examine the specific issues AI identified, consider reducing position
- **1-4 (thesis collapsed)**: Original investment logic severely undermined — seriously consider cutting losses

Buffett's wisdom: Selling a mistaken investment isn't admitting defeat — it's freeing capital for better opportunities. Don't let ego block rational decisions.

Getting started

Does this prompt give investment advice or buy/sell calls?
No. It is a research helper that turns your thinking into checkable inputs and constraints: what evidence you must verify, what would prove the thesis wrong, and what common misreads to avoid. Treat the output as a draft, not a signal. Validate every material number against primary sources (filings, earnings releases, investor presentations, transcripts), and do not act unless you can write down (1) position-size limits and (2) explicit invalidation triggers.
What inputs should I provide for a reliable result?
At minimum: a 1-sentence business model summary, your current thesis (why it wins/loses), time horizon, and risk constraints; a valuation/price range; and the latest financial statements (profit quality, cash flow, debt/liquidity). Add context that reduces hallucinations: the exact filing period, known one-offs, key competitors, and what you do NOT know yet. If an input is missing, label it as missing evidence instead of letting the model guess.

Validation and boundaries

How do I validate the output?
Validate falsifiable claims one by one. Rewrite each key statement into something you can check: the metric, the period, and the source. Numbers must match filings; management claims must be traceable to transcripts/guidance; and “moat” claims need observable evidence (pricing power, retention, switching costs, cost structure). Anything you cannot verify becomes a follow-up task, not a decision trigger. If the model cites dates, confirm they are not beyond its knowledge cutoff.
When should I NOT act on the output?
If you cannot write down invalidation triggers, a position-size cap, or primary-source evidence for the key claims behind “Admettez vos Erreurs”, do not act. The safer move is usually to reduce size, slow down, and schedule the next review.

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