(ETFs), which track stocks, bonds and commodities.

(You are) the man responsible for the largest trading loss in British banking history Mr Justice Keith How a star turned rogue trader

He had joined the bank in 2003 and became a trader in 2006.

The court was told that at one point he stood to lose the bank £7.5bn ($12bn).

Adoboli, the Ghana-born son of a diplomat, told the jury his senior managers were aware of his actions and encouraged him to take risks.

He claimed he lost control over his trades during a period of market turbulence last year.

In his sentencing remarks, the judge, Mr Justice Keith, told Adoboli: "Whatever the verdict of the jury you would forever have been known as the man responsible for the largest trading loss in British bankingguilty by a majority verdict of the second fraud but acquitted him of the other charges.

The prosecution said Adoboli had been a gambler who believed he had the "magic touch".

But, giving evidence, Adoboli said everything he had done was aimed at benefiting the bank, where he viewed his colleagues as "family".

Adoboli said he had "lost control in the maelstrom of the financial crisis", and was doing well until he changed from a conservative "bearish" position to an aggressive "bullish" stance under pressure from senior managers.

He told the jury that staff were encouraged to take risks until they got "a slap on the back of the wrist".

'Wanted it all'

After the verdicts, Andrew Penhale, deputy head of fraud at the Crown Prosecution Service, said: "Behind all the technical financial jargon