Ultra Electronics Holdings plc provided earnings guidance for the second half and full year 2018. The company management now anticipated that the expectations for the group's operating profit at constant currencies for the full year will be reduced by £4 million-£6 million. The order book at £972 million at the end of May was strong with the opening order cover for the second half expected to be higher than in recent years. The company continues to expect to see organic revenue growth. As previously guided, the group's cash performance will be more heavily weighted to the second half of the year.  For the full year, current expectations are for cash conversion of 70%-75%.  This is due to increased working capital requirements given the higher order book and revenue.