The firm's overall profit for the last three months totalled Â£327 million ($527.5 million) - down from Â£1.36 billion in the previous quarter - with a slump in income from Â£8.19 billion to Â£7.41 billion.
"Our income and profit performance was resilient for the first nine months of 2010 despite a subdued economic environment," said chief executive John Varley. "Our capital, leverage and liquidity ratios remain strong."
He insisted that Barclays is "well-equipped" to cope with the implications of incoming regulatory changes and pointed out that the bank is continuing to support private sector businesses through lending.
German rival Commerzbank also posted below-par profits yesterday (November 8th 2010), but stressed that it expects to see a stronger performance over the coming months.
By Claire Archer