Atrium Underwriting has said that premium income forecasts for 2007 for both syndicates are broadly in line with those for 2006.
The company announced at its AGM that Syndicate 609 plans to maintain its stamp capacity at £215m while Syndicate 570 is proposing to reduce its capacity from £150m to £125m to achieve improved utilisation and therefore return on capital.
The group's chairman James Joll said: "I am pleased to report that underwriting conditions remain generally attractive and that rates, terms and conditions remain very strong for business in the critical catastrophe zones."
He added: "While rates continue to soften or at best remain stable on other lines written by our managed syndicates, they remain at attractive levels."
The group's results for the first half to 30 June are due on 27 September.
