Stronger than expected employment data could not prevent Wall Street selling off at the open this afternoon.
Barclays former chief executive Bob Diamond has said he is "dismayed" MPs have questioned the truthfulness of answers he provided to the Treasury Select Committee.
The FSA's chairman Lord Adair Turner warned Barclays earlier this year its reputation in the wider market was being damaged by its own submissions to banking bodies and its handling of trading books.
Barclays former chief executive Bob Diamond has opted to give up a deferred bonus owed to him from his former bank, worth up to £20m.
The Royal Bank of Scotland (RBS) is fighting against a court order which requires it to co-operate with an international criminal investigation into rate-fixing.
The FTSE 100 has risen in early trading, building on recent gains, but Barclays' share price remains volatile as investors react to CEO Bob Diamond's resignation.
Global markets bounced back sharply last month, with some of the most heavily sold off equities in Europe up by huge margins.
Investors piled into risk assets today as the results of last night's summit talks in Europe gave investors hope that an end to the crisis is in sight.