The Madoff Ponzi scheme in brief: Bernard Madoff ran a Ponzi scheme through the investment advisory business of Bernard L. Madoff Investment Securities in New York, paying clients with other clients’ money instead of investing it [S3]. His firm told the SEC it managed more than $17 billion [S4]. He confessed in December 2008, pleaded guilty to 11 counts on 12 March 2009 and was sentenced to 150 years on 29 June 2009 [S1][S2]. His auditor and several employees were also convicted [S6][S10]. The SIPA Trustee has recovered about $15.5 billion for victims [S12].

Key facts

  • Firm: Bernard L. Madoff Investment Securities LLC (BLMIS), 885 Third Avenue, New York [S3]
  • Reported assets: more than $17 billion under management as of January 2008 (SEC allegation) [S4]
  • Plea: guilty to 11 counts, 12 March 2009, before Judge Denny Chin [S1]
  • Sentence: 150 years, 29 June 2009, the statutory maximum; Chin called the fraud “extraordinarily evil” [S2][S5]
  • Auditor: David Friehling of Friehling & Horowitz pleaded guilty on 3 November 2009 [S6]
  • Employees: five former employees convicted on all counts at trial, 24 March 2014 [S10]
  • SEC failure: six substantive complaints from 1992 to 2008, never thoroughly investigated, per the SEC Inspector General [S5]
  • Recoveries: about $15.494 billion recovered and $14.799 billion distributed, as of 29 September 2026 [S12]

Case file: Bernard Madoff. Sources linked at the end as [S#]. SEC complaints are allegations; convictions are noted where they occurred. General information only, not financial advice.

What Madoff admitted

At his plea hearing Madoff said: “I operated a Ponzi scheme through the investment advisory side of my business” [S3]. He told clients he used a “split-strike conversion strategy”. “In fact, I never made the investments I promised clients” [S3]. Client money was deposited at Chase Manhattan Bank and used to pay other clients [S3]. “I knowingly caused false trading confirmations and client account statements that reflected the bogus transactions and positions to be created and sent to clients” [S3].

He said the fraud began, to the best of his recollection, in the early 1990s [S3]. When five of his employees were convicted in 2014, the US Attorney said the trial established that it began “at least as far back as the early 1970s” [S10].

Returns too smooth to be real

In May 2001 the trade publication MARHedge reported that Madoff’s strategy had shown losses of no more than 55 basis points in just four of 139 consecutive months [S5]. Markets don’t behave like that.

Harry Markopolos sent the SEC versions of a complaint in 2000, 2001 and 2005. The 2005 version was titled “The World’s Largest Hedge Fund is a Fraud”, listed around 30 red flags and said a Ponzi scheme was “highly likely” [S5].

Red flag: consistency. Steady returns in every kind of market aren’t a sign of skill. They’re a sign someone should check the trades.

The trades no one confirmed

The SEC’s Inspector General found the agency’s staff never verified Madoff’s trading with independent third parties, which he called “perhaps the most egregious failure” [S5]. Madoff told the SEC his trades cleared through the Depository Trust Company and even gave an account number [S5]. Madoff later told the Inspector General: “I thought it was the end game, over. Monday morning they’ll call DTC and this will be over . . . and it never happened” [S5].

The gap was huge. One feeder fund’s January 2005 statement showed about $2.5 billion of S&P 100 shares; DTC records showed Madoff’s account held less than $18 million at the end of that month [S5]. The Inspector General said confirming this would have taken “a few days” and a phone call to DTC [S5].

Red flag: custody you can’t confirm. If the manager, the broker and the custodian are the same firm, nothing independent stands between the statement and the truth. Confirm holdings with a third party.

A one-CPA audit firm

The SEC alleged that BLMIS’s auditor, Friehling & Horowitz of New City, New York, had one CPA, David Friehling, and that he never performed a meaningful audit or checked that customers’ securities existed [S4]. After Madoff’s confession, an SEC staff attorney reviewed Friehling’s work papers and “within a few hours of obtaining the work papers, he determined that no audit work had been done” [S5].

Friehling pleaded guilty on 3 November 2009 to securities fraud, investment adviser fraud, four counts of filing false audit reports with the SEC and three tax counts [S6]. He cooperated and testified at the 2014 trial, and in May 2015 was sentenced to a year of home detention [S7].

The people around him

Frank DiPascali, a senior employee, pleaded guilty to 10 counts in August 2009 and cooperated; he died in May 2015 before he was sentenced [S8][S9]. In March 2014 a jury convicted five former employees, Daniel Bonventre, Annette Bongiorno, Joann Crupi, Jerome O’Hara and George Perez, on all counts after a trial of more than five months [S10].

The recovery

Court-appointed SIPA Trustee Irving Picard has spent years recovering money for customers. As of 29 September 2026 the Trustee reported about $15.494 billion recovered and about $14.799 billion distributed [S12].

What an auditor takes from this

Every failure here had a simple test. Returns that never dip need explaining. Holdings have to be confirmed with the custodian, not with the manager. And an audit firm has to be big enough, and independent enough, to do the work it signs off on.

Further reading

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Sources

General information only, not financial advice.