Construction giant Leighton Holdings has more than tripled its half-year profit.
Leighton's net profit of $366.2 million for the six months to June 30 was up from the previous corresponding period's $114.6 million.
Revenue for the same period rose by six per cent to $10.5 billion, from $9.9 billion.
Despite the good profit result, Leighton Holdings shares fell 69 cents, or four per cent, to $16.58 at 1013 AEST.
Chief executive Hamish Tyrwhitt said that while the profit result was strong, there were still challenges.
"The result demonstrates the strength of our business model and the relevance of our strategy amid challenging market conditions," he said in a statement.
"The higher revenue, margin and net profit achieved during the first half shows the clear turnaround of our business."
Interim dividends paid to shareholders more than doubled, to 45 cents from 20 cents.
The company is expecting an underlying full-year net profit of between $520 million and $600 million.
For the six months to June, underlying net profit after tax more than doubled to $255 million, up from $115 million.
Leighton's construction contracting services posted revenue growth of 15 per cent to $7.27 billion from $6.32 billion.
During the reporting period, Leighton won a $1.15 billion NSW government contract to build Sydney's North West Rail Link, of which the group will get $0.9 billion.
Leighton Holdings is the parent company of Leighton Contractors, Theiss, John Holland, Leighton Asia India and Offshore and Habtoor Leighton Group in the Middle East.
