Allied Irish Banks: The Forex Trader Who Lost $691 Million
For nine years, one currency trader turned a major bank’s balance sheet into a stage set—then the fake profits collapsed and Allied Irish Banks learned how expensive a silence can be.
Quick Facts
- Period
- 1993 - 2002
- Region
- Americas
- Key Figures
- Ciaran O'Kelly, John Rusnak, Joseph J. Cassey +1 more
Key Figures
Ciaran O'Kelly
Enabler
Allied Irish Banks executive leadership in the United States and later bank governance circleCiaran O’Kelly appears in the story not as a villain of the same order as John Rusnak, but as part of the institutional ...
John Rusnak
Perpetrator
Allied Irish Banks foreign exchange desk, BaltimoreJohn Rusnak stands at the center of the Allied Irish Banks case as a classic rogue trader, but the label alone misses th...
Joseph J. Cassey
Investigator
U.S. Attorney's Office / federal prosecution in BaltimoreJoseph J. Cassey appears in the public record as part of the prosecutorial machinery that transformed the Allied Irish B...
United States Securities and Exchange Commission
Investigator
Federal securities regulatorThe United States Securities and Exchange Commission in the Allied Irish Banks affair functions less as a single actor t...
The Story
This narrative combines documented history with dramatized scenes for storytelling purposes.
Origins & The Setup
Before the losses became a number on a regulatory filing, John Rusnak was the kind of banker who could disappear into an institution that preferred competence t...
The Pitch & The Pull
The story sold inside Allied Irish Banks was not the story of theft. It was the story of a disciplined currency trader managing risk in a fast-moving market. Th...
The Mechanics of the Lie
What kept the fraud alive was not a single forged document but a system of substitutes. According to prosecutors and later reporting, John Rusnak hid his losses...
The Unraveling
The collapse did not arrive as a single bang. It came through pressure: the kind that exposes a concealed position when the market moves against it and the trad...
Aftermath & Legacy
After the collapse, the case moved from the fluorescent routines of bank operations into the more unforgiving machinery of federal justice. The collapse was no ...
Timeline
Rusnak joins the path toward the foreign exchange desk
**1993-01** — John Rusnak’s career moves him into foreign exchange, the market setting that would later give him the room to conceal losses. The significance of this period is structural rather than dramatic: a trader enters a business where speed, documentation, and trust can drift apart.
The concealment begins taking shape
**1994-01** — According to later prosecutors, the fraudulent pattern begins with the use of fictitious options and false reporting. The early lie is small in appearance but foundational in effect, because it turns losses into reported hedges.
Internal controls fail to stop the growing gap
**1995-01** — The desk continues to operate while reconciliation and confirmation processes fail to expose the mismatch between reported and actual positions. The fact that the scheme survives this long is itself evidence of how weak the supervision was.
The fraud is sustained by false confirmations
**1998-01** — The paper trail remains intact enough to satisfy routine review, allowing concealed losses to accumulate. At this stage, the bank’s confidence in the process is part of the mechanism keeping the deception alive.
Growing exposure reaches critical pressure
**2001-01** — Market movement and accumulated losses begin to create pressure that cannot be handled through ordinary concealment. The hidden position is now large enough that the bank’s own systems are increasingly strained by the fraud.
The bank’s review starts to break the story open
**2002-02** — Internal scrutiny and outside review converge on the conclusion that the reporting does not match reality. The collapse begins as a verification problem and turns quickly into a criminal matter.
Federal authorities move in
**2002-03** — The case is referred into the criminal process, and investigators begin formalizing the evidence. The bank’s private disaster becomes a matter for prosecutors and regulators.
John Rusnak is arrested
**2002-04-05** — Rusnak is taken into custody after the fraud is publicly recognized. His arrest marks the point at which the hidden loss becomes an enforceable federal case rather than an internal scandal.
Charges are filed in federal court
**2002-04-05** — Prosecutors charge Rusnak with bank fraud and related offenses, publicly naming the scheme and its methods. The legal filing fixes the fraud in the historical record.
Guilty plea in Baltimore
**2002-09-13** — Rusnak pleads guilty in federal court, acknowledging criminal conduct tied to the concealment of losses. The plea ends the question of whether the scheme existed and moves the case toward sentencing.
Sentencing follows the plea
**2003-01-21** — The court imposes prison time, concluding the criminal punishment phase of the case. The sentence does not restore the bank’s losses, but it closes the legal chapter on Rusnak’s conduct.
Legacy of reform inside the bank
**2003-12** — AIB and other banks use the case to reinforce segregation of duties, independent confirmations, and trading oversight. The reforms are part of the post-scandal effort to ensure a rogue trader cannot again dominate both the book and the records.
Sources
- regulatory_filingU.S. Securities and Exchange Commission, enforcement materials and litigation releases regarding Allied Irish Banks and John Rusnak
Primary SEC litigation-release archive; relevant case materials are indexed there.
- government_press_releaseU.S. Department of Justice, U.S. Attorney's Office for the District of Maryland press releases on John Rusnak
Federal prosecutorial materials and case announcements.
- court_documentUnited States v. John Rusnak, U.S. District Court for the District of Maryland, criminal docket
PACER docket and filings for the criminal case; publicly referenced in contemporaneous coverage.
- court_documentSecurities and Exchange Commission v. John Rusnak, civil enforcement materials
Civil enforcement record associated with the AIB foreign-exchange fraud.
- news_articleThe Wall Street Journal coverage of Allied Irish Banks and John Rusnak
Contemporaneous enterprise reporting on the fraud and internal-control failures.
- news_articleThe New York Times coverage of the Allied Irish Banks rogue trader case
Widely cited reporting on the exposure of the losses and the bank’s response.
- news_articleBloomberg reporting on John Rusnak’s guilty plea and sentencing
Market-focused reporting on the court proceedings and financial impact.
- news_articleFinancial Times coverage of Allied Irish Banks’ loss and governance fallout
Useful contemporaneous analysis of the bank’s internal-control weaknesses.
- bookDiana B. Henriques, The Wizard of Lies: Bernie Madoff and the Death of Trust
Used as a journalistic model for bank-fraud narrative framing and institutional analysis.
- congressional_testimonyHarry Markopolos congressional testimony on financial-fraud controls
Not case-specific, but relevant to the control environment and fraud-detection lessons.
Explore Related Archives
Financial fraud has toppled companies, entangled governments, and exploited trust across borders. Explore the broader context through our sister archives.


