MySale Group, an international online retailer, grew its underlying EBITDA by 80% to a record A$5.5 million in the six months to 31 December 2017.
Gross profit increased 19% to approximately A$45.7 million, while revenue rose 11% to around A$152.0 million.
The gross margin increased 200 bps to 30.1%.
The group said full year of underlying EBITDA will be at least at the top end of market expectations.
Carl Jackson, chief executive officer, said: "We have had a record first half with the growth in underlying EBITDA of 80% underpinned by double digit online revenue growth and robust gross margins.
"In parallel we continued to make excellent progress scaling the product range available to customers within our marketplace platform whilst also developing further our proprietary financial services and subscription delivery propositions, Ourpay and Ourpay Select.
"We have made a great start to the year and approach the second half with confidence and with an exciting range of strategic options ahead."
At 8:54am: (LON:MYSL) Mysale Group Plc share price was +3.25p at 112.25p