Citigroup facing loss of at least £40m after 'fat finger' mistake

The trader added an extra zero to a trade in Swedish stocks, which triggered a 'flash crash' and wiped as much as £240billion off the value of the market.

Citigroup facing loss of at least £40m after 'fat finger' mistake
The trader added an extra zero to a trade in Swedish stocks, which triggered a 'flash crash' and wiped as much as £240billion off the value of the market.