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In early September 2011, the Swiss bank UBS announced that it had lost over 2 billion dollars, as a result of unauthorized trading performed by Kweku Adoboli, a director of the bank's Global Synthetic Equities Trading team in London. On 24 September 2011, Oswald Grübel, the CEO of UBS, resigned "to assume responsibility for the recent unauthorized trading incident", according to a memo to UBS staff.〔〔 On 5 October Francois Gouws and Yassine Bouhara, the co-heads of Global Equities at UBS, also resigned.〔( "UBS Equities Chiefs Resign in Wake of Scandal )" 5 October 2011〕 It later emerged that UBS had failed to act on a warning issued by its computer system about Adoboli's trading.〔(Computer Weekly 6 Oct 2011 )〕〔(IT-World 7 Oct 2011 )〕〔("UBS: Our risk systems did detect £1.3bn rogue trader" ). ''Computer World'' UK 6 Oct 2011〕 After two delays requested by Adoboli and a change of legal representation, Adoboli pleaded not guilty to two counts each of fraud and false accounting on 30 January 2012. He was released on conditional bail after a bail application at Southwark Crown Court on 8 June 2012. He was later convicted of both counts of fraud and sentenced to seven years imprisonment. He is currently appealing both conviction and sentence. ==The trading incident== On 15 September 2011, Adoboli was arrested under suspicion of fraud in connection with a loss of a then-estimated US$2 billion, reportedly due to unauthorized trading at the Swiss group’s investment bank. A spokesperson from the Swiss banking regulator FINMA referred to the case as one of the biggest ever seen at a Swiss bank.〔 Adoboli had originally retained the law firm of Kingsley Napley, which previously advised Nick Leeson. However, he has now changed his legal representation to Bark & Co and Furnival Chambers, with the fees being paid by legal aid. On 30 January 2012 he pleaded not guilty to two charges of fraud and two charges of false accounting and faces up to 10 years in prison if convicted of all charges. The loss to UBS was described as "manageable" although it might cause UBS to report a net loss in the following financial quarter. The bank's net earnings for the year ending June 2011 were $6.4 billion〔Laurence Knight, (Q&A: How do rogue traders do it? ), BBC, 15 September 2011.〕 with a gross profit of approximately $1.1 billion reported by UBS for the third quarter of 2011.〔(【引用サイトリンク】url=https://www.ubs.com/global/en/about_ubs/media/global/releases/news_display_media_global.html/en/2011/10/25/pre_tax_profit.html )〕 On 15 September, the day of Adoboli's arrest, the price of the stock of UBS closed down 10.8%, while the price of other European bank stocks rose between 3–6%.〔Simon Kennedy, ("Banks soar in Europe after liquidity move, UBS uncovers $2 billion unauthorized trading loss" ). Market Watch, 15 September 2011, 12:10 pm EDT〕 It has been reported that Adoboli informed UBS of his unauthorized trades, and then the bank informed the Financial Services Authority and the police. On 16 September, it was announced that City of London Police charged Adoboli with fraud by abuse of position and false accounting. On 18 September 2011, UBS issued a statement which revealed the losses from the alleged unauthorized trading stood at $2.3 billion. The rogue trader reportedly racked up the losses by speculating on EuroStoxx, DAX and S&P 500 indexes. The prosecutor in Adoboli's trial, Sasha Wass, stated that Adoboli "was a gamble or two from destroying Switzerland's largest bank for his own benefit." According to ''Business Insurance'', as in the case of the unauthorized trades by Nick Leeson at the Singapore office of Barings Bank, the Adoboli incident took place at a location away from the bank's central office, where the risk management systems are typically stronger.〔(''Business Insurance'' 2 October 2011 )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2011 UBS rogue trader scandal」の詳細全文を読む スポンサード リンク
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