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Tom Hayes

b. 1979

Former trader for UBS and Citigroup

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About Tom Hayes

Born 1979. Tom Hayes is a British trader, merchant, mathematician and trader (finance), known for Libor Scandal.

Tom Hayes (born October 1979 ) is a British former trader for UBS and Citigroup who was convicted of conspiring with others to manipulate the London Interbank Offered Rate (Libor) as part of the Libor scandal. He was sentenced to 14 years in prison - reduced to 11 years on appeal.

Although Hayes initially cooperated with the Serious Fraud Office, he maintained his innocence and claimed during his original trial that he participated in an “industry-wide” practice, accusing regulators of making him a scapegoat. He asserted managers were aware of his actions, and even condoned them.

Early life Tom Alexander William Hayes was born in West London to Nicholas and Sandra Hayes, and initially grew up in Hammersmith. He moved with his mother to Winchester after his parents divorced, where he was raised by his mother, and Timothy, his stepfather. He graduated with a degree in mathematics and engineering.

Career and education In 2001, after time as an intern at UBS, he joined Royal Bank of Scotland's trainee programme, at the interest rate derivatives desk. he was headhunted by Royal Bank of Canada in 2004, and, upon moving there, he assumed greater responsibility.

Hayes turned down an offer from Goldman Sachs in 2008, but in 2009, accepted an offer from Citigroup; the bank gave him a $3 million signing bonus.

Manipulating LIBOR Hayes traded derivatives at UBS and, later, Citigroup, in Tokyo. His favoured activity was basis trading, speculation on the movements in Libor expressed in multiple currencies and various durations, trades he might hedge with trades in other derivatives. The daily reporting of Libor rates by bankers around the world determined his success or failure in generating profits for his bank and bonuses for himself. By September 2008, a one basis point (1/100 of one per cent) move in Libor had about a US$750,000 effect on his bottom line. Through a network of his broker contacts, including one at the world's largest inter-dealer broker, ICAP, he succeeded in having Libor reported lower than its true level in order to drive his profits and personal bonuses higher.

In less than 9 months, in 2010, Hayes was fired by Citi for his Libor activities. In its letter dismissing the 35-year-old former trader, the bank wrote: "Citigroup has uncovered that you attempted to manipulate the Yen Libor and [the Tokyo equivalent] Tibor rates in order to benefit your trading position", which it said was a clear breach of its code of conduct, "resulting in the possibility of serious regulatory actions". After being fired, he moved back to England, where he day traded with his Citi bonus.

Arrest and trial On 11 December 2012, Hayes was arrested by British authorities for his involvement in manipulating Libor rates, and on 19 December, he was charged by the United States for the same crime. In order to avoid extradition to and subsequent trial by and imprisonment in the U.S., Hayes initially cooperated with the Serious Fraud Office, providing eighty hours of interviews so as to be charged by the United Kingdom. After being charged, Hayes withdrew his offer of cooperation, intending instead to fight the charges levied by the SFO. In response, the SFO narrowed the scope of their charges, so leaving less overlap between charges by American and British prosecutors, creating the possibility of a second trial in the United States. and was accompanied by a court-appointed aide during the trial. Throughout the trial, prosecutors used Hayes' SFO interviews to establish his greed and corruption. The defence attempted to illustrate that manipulation of Libor was both widespread and expected as part of Hayes' job description, with senior management aware of the tactic. The judge, Jeremy Cooke, indicated he wished to "send a signal" to traders involved in illegal trading, as the sentence was significantly harsher than those given to other individuals convicted of financial crimes, such as Nick Leeson.

Having exhausted all avenues of appeal, in May 2016, Hayes instructed solicitor Karen Todner to make an application for review by the Criminal Cases Review Commission (CCRC). In December 2021, the CCRC handed down a provisional judgement not to refer Hayes' case to the Court of Appeal.

In October 2022, the United States dismissed criminal charges against Hayes.

In July 2023 Hayes was finally referred by the CCRC back to the court of appeal in the U.K. following the Connolly and Black second circuit appeal court decision in the USA. In March 2024, the U.K. Court of Appeal upheld Hayes' conviction. Lord Justice Bean said there was “indisputable documentary evidence” Hayes had sought to move Libor.

Time in prison In 2016, Hayes released letters concerning his time in prison. In them, he described being held separately from other prisoners, for his protection, in a "segregation unit". Interviewed in "The Times" Hayes spoke of the struggles with his mental health and how becoming a Christian and the ministry of the church had helped him to survive.

On 29 January 2021, Hayes was released on licence from Ford open prison, having served half his sentence.

Lawsuit against UBS On 27 October 2025, Hayes sued UBS for $400 million in alleged damages, claiming his activities were common practice in the bank and senior management was aware. The lawsuit alleges UBS's actions cost Hayes hundreds of millions in potential earnings, reputational damage, and emotional and physical trauma.

Personal life Hayes was married to Sarah Tighe, a corporate lawyer in London, with whom he has one child. They divorced in September 2019 during his imprisonment, although the couple remain on good terms and Tighe has campaigned for Hayes' conviction to be overturned.

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Important facts

Born
1979, London
Birth century
Occupation
Trader, merchant, mathematician, Trader (finance)
Nationality
Known for
Libor Scandal
Education
University of Nottingham, The Westgate School, Peter Symonds College, Hult International Business School
Employers
The Royal Bank of Scotland, Royal Bank of Canada, UBS, Citigroup
Also known as
Thomas Alexander William Hayes

People in Tom Hayes's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Tom Hayes's

Frequently asked questions

Who is Tom Hayes?

former trader for UBS and Citigroup

When was Tom Hayes born?

Tom Hayes was born in 1979 in London.

What is Tom Hayes's occupation?

Tom Hayes is a trader, merchant, mathematician and trader (finance).

What is Tom Hayes known for?

Tom Hayes is known for Libor Scandal.

What nationality is Tom Hayes?

Tom Hayes is British.

Sources & further reading

· Wikipedia: Tom Hayes

· Wikidata: Q22087172

· DBpedia: Tom Hayes (trader)

Cite this page

APA: Biography.guide. (2026). Tom Hayes. https://biography.guide/tom-hayes-trader/

MLA: "Tom Hayes." Biography.guide, https://biography.guide/tom-hayes-trader/.

Chicago: "Tom Hayes." Biography.guide. https://biography.guide/tom-hayes-trader/.

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