Due Diligence book cover

Jean-Christophe Labbé

Due Diligence

Your Survival Guide for the Golden Age of Fraud

2026 Edition Get the Book — $29
75
Tricks analysed
5
In-depth cases
25yrs
Experience
44
Real Investment Cases

From Wirecard to Under Armour — every chapter anchored to a real fraud, a real collapse, a real short. 40 compact two-column cases + 4 deep-dives spanning two pages each.


What's inside

6 chapters. Every trick used to inflate a stock price — and how to catch it.

The Wirecard Smell Test

A top-down framework to audit any company before you go deeper — built on the case that broke a $25Bn fraud.

Boosting Revenues

Channel stuffing, bill-and-hold, roundtripping, barter transactions — 20 methods, each with live examples.

Lowering Costs

From capitalised R&D to big bath charges — 17 techniques that inflate margins while the business deteriorates.

Cash Conversion

18 ratios that expose when reported profits are fiction: DSO vs. peers, deferred revenue trends, EBITDA margin checks.

Real Leverage

Vendor financing, collar loans, off-balance-sheet SPVs, reverse factoring — where the debt hides and how to find it.

Management Greed

The Greed-o-Meter, proxy deep-reads, SBC vs. FCF screens, and a Hall of Shame from Kozlowski to Neumann.

Your book comes with a proprietary checklist

Every buyer gets access to the Due Diligence Master Checklist — a structured, chapter-by-chapter toolkit built directly from the book. Run it on any stock before you take a position. It covers every red flag, ratio, and proxy trap across all six chapters.

Included with your purchase

Inside the book

A look at the pages

Sample Section on a trick

Table of Contents

Table of Contents

Investment Case Study — iQiyi

Investment Case Study

Sources — Management Greed chapter

Sources & Toolkit

How to use this book

What can you do with the time you have?

1 Hour
The quick screen

Read Chapter 1. Run the Wirecard Smell Test on any stock in your portfolio. Reconstruct the cash flow statement top-down and bottom-up. If the gap is large or growing — stop. That's all you need to pass on a position.

1 Day
The income statement audit

Read Chapters 2 & 3. Go through the 20 revenue tricks and 17 cost methods against three years of filings. Flag every technique that applies. Cross-check with the 18 cash conversion ratios in Chapter 4. By end of day you have a full forensic read of the P&L.

1 Week
The full due diligence

All six chapters + the proprietary checklist. Revenues, costs, cash, leverage, and management incentives — every layer of the balance sheet, every proxy red flag. Run it on a new position or re-run it on something you already own. This is what the checklist was built for.


The next Enron won't deal in SPVs called "Raptor". The next WeWork won't pay its CEO $6mn for the right to use the word "We". Fraud will take different shapes — but the methods to spot it won't change that much.
— Preface

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Questions? jclabbe74@gmail.com