"It's a division in the company that's low margin, but important to win contracts, but it's the one blight on what is not a bad underlying business," he said.
The Citi research values the construction division at $341 million on an earnings multiple of just four times, less than half the 8.1 times multiple running across the entire group.
Fletcher has set up its divisions to be stand-alone businesses, which Ward said means "anything's up for sale when you have a structure composed like that" if it's found to be worth more to someone else than as part of the wider group.
The AFR report speculated a full takeover at a standard premium could cost as much as $8.5b, although it could be done piecemeal. While it remained to be seen whether investment banks could rally up any interest, the AFR said a new entrant to the local building materials market with deep pockets would be a likely candidate.
A full break-up of Fletcher was mooted in a First NZ Capital report a year ago, when the shares were trading at discount of about 25 per cent to the research house's estimates. At the time, First NZ analysts projected several years of growth for the New Zealand operations whereas the Australian and international businesses were seen as being likely to underperform the cost of capital, eroding shareholder value.
Fletcher's only substantial shareholder is US-based fund manager BlackRock, with a 6 per cent stake. The company has 37,630 shareholders, of which the top 100 own 84 per cent.