Beazley expects pre-tax profits for the year ended 31 Dec to be ahead of current market forecasts.
The group said the board anticipated that Beazley would report a combined ratio of 99% for 2017.
In addition, the group expects to report an investment return of 2.9% for the year on average invested assets of $4.8bn.
It added: 'Finally, we note a reduction of approximately $5m in the value of our US deferred tax asset following the reduction in the US corporation tax rate from 35% to 21%.'
At 8:20am: (LON:BEZ) Beazley PLC share price was +9.5p at 517p