September 15: Citigroup is among US investment banks who tap the US Federal Reserve's $7.1 billion emergency fund

October 1: Citigroup stuns investors with warning that the credit crunch could push third quarter profits down 60 per cent

October 4: Citigroup offers Britain's own crisis hit mortgage lender, Northern Rock, a £10 billion lifeline

October 12: Chuck Prince announces a management shake-up a week after the bank reveals a $3.3 billion (£1.6 billion) hit from the credit crunch

October 15: The sub-prime crisis knocks 57 per cent off Citigroup's profits

Citigroup is one of three US banks to set up a "super fund" to help hedge funds deal with credit crunch losses

October 31: Merrill Lynch's Stan O'Neal falls on his sword after the bank reveals an $8.4 billion quarterly loss - but a $200 million payoff awaits

Speculation grows Chuck Prince might be the next high profile banking leader to go

November 1: Michael Raynes, Citigroup's financial products chief, leaves after just over a year as losses prompt Citigroup and Bank of America to jettison senior bankers

November 2:

Chuck Prince looks set to resign amid mounting woes

Chuck Prince resigns

Earlier in the day leading US analyst Meredith Whitney issued a pessimistic note in Citigroup

Whitney's note sends shares into freefall

November 3: Meredith Whitney hits back after receiving death threats

November 5: Robert Rubin is named Citigroup chairman

Citigroup's woes continue: the bank looks set to face an SEC enquiry into its use of SIVs

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