Mark Lister, head of private wealth research at Craigs Investment Partners, said the "look through" forecast consolidated earnings contributions from Rakon's joint ventures.
In a research note last month Craigs Investment Partners said it had downgraded its full-year ebitda forecast to reflect a weaker-than-expected telecommunications market and the impact on volumes from Rakon's operations in France and Britain.
And the company's Chinese manufacturing facility in Chengdu, which began commercial production in October, was expected to post a $1.5 million full-year loss, the brokerage said.
Craigs has forecast improved profits and earnings in the current and 2014 financial years, but Lister said the firm had "slightly conservative" expectations for Rakon's full-year result this week.
"We could be proven wrong, but it is a company that in the past has disappointed the market on more than one occasion," he said. "It's a hard business to forecast ... it has a lot of moving parts and a lot of things that can affect them, both good and bad."
Rakon shares, which have shed more than 50 per cent of their value over the past year, closed at 55c on Friday.