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Explainer: Lessons from Citi’s £62mn ‘fat finger’ fine

Lessons can be learned from the ‘fat finger’ error at Citi’s European trading arm that caused a market flash-crash in May 2022
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Explainer: Lessons from Citi’s £62mn ‘fat finger’ fineImage via Getty Images

Two UK regulators fined Citigroup £62mn after a “fat finger” error at the bank’s European trading arm, which caused a markets flash-crash in May 2022. 

A trader on Citi’s Delta 1 desk typed the value of a basket of equities into the wrong field. 

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