Sergio Stieben

Financial Forensics: The Due Diligence Files

Business EN ↓ 300 episodes

Forensic dissection of capital markets collapses. Not headlines — mechanisms. How money moved. Where structures broke. T1 — Full autopsy. The collapse, the actors, the moment nobody stopped it. T2 — GP/LP room. 3 red flags in the documents. Due diligence questions. Active parallels in deals running today. For allocators, GPs, and fund professionals. Hosted by Sergio Stieben — 15 years in GP/LP relations, cross-border finance US-LatAm-Europe. Data Sheets + early access to LiveDealScreen — live case database and pattern-matching tool for GPs and LPs: ⁠⁠⁠https://risk-pattern-scan.lovable.app

Author

Sergio Stieben

Category

Business

Podcast website

podcasters.spotify.com

Latest episode

Jul 10, 2026

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Episodes

Anta Sports 2019: Non-Wholly Owned Independence Claims vs Public Registry Reality│File 150 T2 10.07.2026

Six weeks. That is how long it took for two separate research firms, working independently, to build two different cases against the same company using two different methods—one built on a revenue estimate, one built on a corporate registry—and for the market to reprice the stock twice before either case reached a regulator. 🔴 Every corporate failure leaves behind a pattern. FFL Tools runs a live...

Anta Sports 2019: The Distributor Proxy Control & The Hidden SAIC Paper Trail│File 150 T1 10.07.2026

Hong Kong Stock Exchange, morning of July 8th, 2019. A trading halt hits one of the largest sportswear companies on the planet, mid-session, with no warning to retail shareholders. Somewhere in Manhattan, a research firm just pressed publish on a document built from something almost nobody bothers to check before buying a stock: the corporate registry filings of the company's own distributors....

China Huarong 2021: Implicit Sovereign Backstops vs Contractual Credit Recourse│File 149 T2 09.07.2026

Here is a question almost nobody on the buy side asks explicitly when pricing a bond from a large, state-linked issuer: has anyone actually seen the document that guarantees this, or are we all just agreeing to believe the same thing at the same time? In most cases there is no document. 🔴 Every corporate failure leaves behind a pattern. FFL Tools runs a live deal through the same forensic questio...

China Huarong 2021: The Unwritten Sovereign Guarantee & The $16 Billion Capital Wipeout│File 149 T1 09.07.2026

A company can report an eighty-five percent collapse in its own shareholder equity, a loss of almost sixteen billion dollars in a single year, and its dollar bonds barely move on the news. Not because the market didn't notice. Because the market had already made a bet, months earlier, on who actually signs the check when a company like this can't pay—and that bet had nothing to do with the...

Imtech 2015: The Phantom Order Book & Europe's Suppressed Corporate Warning│File 148 T1 08.07.2026

An engineering company can report a growing pipeline of contracts, rising revenue, and healthy margins for years, and still not have the cash to make this month's payroll. Both things can be true at once, because the revenue on the books was never really a measure of what had been delivered or collected. It was a measure of what the company said it had already finished. 🔴 Every corporate fail...

Imtech 2015: Percentage-of-Completion Drift & Cost Input Manipulation Economics│File 148 T2 08.07.2026

Here is a question almost nobody asks when reviewing a long-term construction or engineering contract on a counterparty's balance sheet: who actually produced the completion percentage driving the reported profit, and what happens to their bonus if that percentage comes in lower next quarter. 🔴 Every corporate failure leaves behind a pattern. FFL Tools runs a live deal through the same forens...

Ahold 2003: Joint Venture Consolidation Arbitrage & Promotional Allowance Timing Fraud│File 147 T2 07.07.2026

This GP and LP institutional layer analysis deconstructs the dual-engine accounting failure that compromised the financial reporting integrity of a global retail conglomerate. I have reviewed joint venture consolidation memos where a single auditor-facing control letter was improperly accepted without validating the existence of parallel restrictive covenants or partner side agreements. The Ahold...

Ahold 2003: The Secret Side Letters & Europe's Multi-Billion Grocery Fraud│File 147 T1 07.07.2026

A retailer can report a bigger profit without selling one extra item off its shelves. All it has to do is book a supplier's promise of a future discount as if that discount had already been collected in cash. This financial autopsy details the 2003 collapse of Ahold, once one of the largest food retailers on the planet, which ran two distinct accounting manipulations simultaneously under CEO C...

Vivendi Universal 2002: Consolidated Liquidity vs Structural Cash Access Bifurcation│File 146 T2 06.07.2026

This GP and LP institutional layer analysis deconstructs the structural opacity embedded in conglomerate consolidation accounting policies. I have reviewed credit underwriting models where a borrower's reported liquidity ratio falsely assumed unrestricted access to a partially owned subsidiary’s cash base. The Vivendi precedent establishes the mechanical necessity of isolating group-level aggr...

Vivendi Universal 2002: The Illusion of Consolidation & France's Largest Corporate Loss│File 146 T1 06.07.2026

A company can report tens of billions of dollars in assets on its balance sheet and still not have enough cash on hand to cover its own overhead the same quarter. Both statements can be true at once, audited, filed, and defended by management right up until the day the description collapses under its own weight. This financial autopsy maps the 2002 liquidity crisis of Vivendi Universal, the French...

Allied Capital 2007: Grading Your Own Homework & The Five-Year Valuation War│File 145 T1 05.07.2026

One investor spent five years telling anyone who would listen that a company's numbers were fiction. The company's own auditors spent those same five years signing off on the same numbers as fact. Both of them were reading the identical balance sheet. This financial autopsy details the 2007 collapse of Allied Capital Corporation, once the largest business development company (BDC) in Ameri...

Allied Capital 2007: Illiquid Portfolio Fair Value & The Structural Loss Deferral Incentive│File 145 T2 05.07.2026

This GP and LP institutional layer analysis deconstructs the mechanical underwriting and valuation risks embedded in closed-end investment vehicles carrying illiquid private assets. I have reviewed private credit fund valuation memos where fair value estimations relied entirely on internal discounted cash flow and transaction multiple models rubber-stamped by an affiliated board. The Allied Capita...

Heta Asset 2015│ The Suicidal Guarantee & The Six-Year Legal War│File 144 T1 04.07.2026

A financial guarantee only means something if the guarantor can actually pay it. In this case, paying it in full would have made the guarantor insolvent too. So for six years, nobody got paid in full, and nobody could officially say the guarantee had failed. On paper, it was still there. This financial autopsy details the 2015 collapse of Heta Asset Resolution, the Austrian bad-bank wind-down vehi...

Heta Asset 2015: State Moratorium on Wind-Down Vehicle & Senior Creditor Recovery Uncertainty │File 144 T2 04.07.2026

This GP and LP institutional layer analysis deconstructs the mechanical valuation of sub-sovereign, quasi-sovereign, and state-guaranteed debt instruments within European resolution jurisdictions. I have reviewed credit underwriting practices where a deficiency guarantee was treated as a binary checkbox rather than an active balance sheet constraint. The Heta precedent establishes the quantitative...

Banco Popular Spain 2017: Solvency Solipsism & The Definitive Capital loss Judgments│File 143 T2 03.07.2026

This GP and LP institutional analysis details the mechanics of liquidity velocity versus static solvency metrics within point-of-non-viability resolution jurisdictions. I have reviewed distressed debt portfolios where credit underwriting over-indexed on phased-in CET1 ratios while treating Liquidity Coverage Ratios (LCR) as a secondary variable. Popular stands as the definitive precedent for Europ...

Banco Popular Spain 2017│The One-Euro Bank & The Ten-Day Liquidity Collapse│ File 143 T1 03.07.2026

A company worth one-point-three billion euros on a Friday can be sold for one euro on the following Wednesday, and the regulators who approved the sale will call it a success story. The gap between those two numbers was not fraud, and it was not even really about the value of the bank's assets. It was about how fast money can leave a bank once enough depositors decide, within the same seventy-two...

Credit Suisse AT1 2026: The Sovereign Treaty & Arbitration Suspensive Effect Valuation Front│File 142 T2 02.07.2026

This GP and LP institutional analysis details the mechanical valuation of distressed legal claims and residual resolution exposures across multiple sovereign jurisdictions. We examine how the formal mechanism of suspensive effect leaves favorable first-instance administrative rulings legally inert during appellate lifecycles. I have reviewed multi-jurisdictional litigation finance frameworks and p...

Credit Suisse AT1 2026│The Empty Victory & The Three-Jurisdiction War│ File 142 T1 02.07.2026

A court can rule that a government seized seventeen billion dollars illegally. That ruling, by itself, does not put a single dollar back in anyone's account. The bonds are still worth zero. The reason they are still worth zero, despite a court saying the order that zeroed them was unlawful, is the actual subject of this file—because it turns out that winning a legal argument about a transaction th...

First Republic Bank 2023│Relationship Subsidy & The Duration Structural Deficit│ File 141 T1 01.07.2026

The interest rate was generous. Fixed for a decade, with no principal due for that first decade, priced years before the cost of money started climbing. The borrower never missed a payment. The loan was never delinquent, never restructured, never flagged as bad credit. And that loan—performing exactly as written, for years—is one of the reasons the bank that issued it does not exist anymore. It wa...

First Republic Bank 2023: Relationship Collateral & The Unsecured Retention Assumption│File 141 T2 (2023) 01.07.2026

This GP and LP institutional analysis details the mechanical structure of relationship-priced lending models and their conversion into structural deposit concentration risks. We examine how counting uncontracted deposit balances as underwriting support creates an artificial pricing buffer that dissolves during rapid monetary transitions. I have sat in credit committee reviews where relationship lo...

Signature Bank 2023: Public Arithmetic Signals & The Network Propagation Run│File 140 T2 30.06.2026

This GP and LP institutional analysis details the mechanical structure of network-correlated bank runs within concentrated commercial liabilities. We examine how standard liquidity stress testing frameworks optimized for slow retail withdrawals completely fail to parameterize real-time institutional outflows. I have reviewed liquidity stress test frameworks and institutional due diligence data whe...

Signature Bank 2023│ Liability Concentration & The Sectoral Contagion Mechanism│ File 140 T1 30.06.2026

The bank's loan book was not impaired. The securities portfolio did not have the duration mismatch that had destroyed its peer two days earlier. What the bank had—and what closed it in forty-eight hours—was a deposit base where approximately ninety percent of deposits were uninsured, and where the depositors who held those uninsured balances were concentrated in a single industry that was experien...

REITs Office 2023 │The Capitalization Rate Obsolescence & The Appraisal Lag Gap │File 139 T1 30.06.2026

The building did not change. The tenants did not leave. The leases did not expire. What changed is the number that investors required as a return for owning a building of this type, in this location, with these tenants—and that number, when it moved, moved the value of every office building on every balance sheet that used it. That is the mechanism of the cap rate. It is also the mechanism of the...

REITs Office 2023: Valuation Lag Methodology & The Institutional Redemption Trigger│File 139 T2 30.06.2026

This GP and LP institutional analysis details the mechanical structure of the appraisal lag within core private real estate vehicles. We examine how an appraisal methodology optimized for low-volatility environments creates an artificial pricing buffer during rapid interest rate transitions. I have reviewed LP capital call data and portfolio reporting where valuation models relied exclusively on s...

PCAOB China Reform 2022: Brand Reputation Asymmetry & The Structural Verification Absence│File 138 T2 30.06.2026

The question everyone asks about an accounting fraud is whether the audit caught it. That is the wrong question for this case. The right question is whether anyone with legal authority to check the audit's work was ever allowed to do so—and for fifteen years, for one of the largest blocks of foreign companies on US exchanges, the answer was no. That inversion matters because it changes what th...

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