Aspen Insurance has reported a net income of $83.8m for the second quarter of 2005 and $153.9m for the six months ended 30 June, 2005.
Gross written premiums were $549.4m for the second quarter 2005 and $1.35bn for the six months ended 30 June, 2005.
Chris O'Kane, chief executive, said: "Our second quarter results reflect strong performance across each of our four product groups.
"In the lines of business in which we specialise, market conditions remain broadly favourable, although trending downwards. I am confident as we enter the second half of the year that 2005 will be another good year for Aspen, absenting major losses."
Shareholders' equity increased from $1.48bn at 31 December, 2004 to $1.61bn at 30 June, 2005.
Aspen has also declared a quarterly cash dividend of $0.15 per ordinary share.