Bain's entry has added some intrigue as to whether it is positioning for a potential takeover of the struggling glass company or whether it sees it as a turnaround story.
Stephen Bennie at Castle Point Funds is one who struggles to see a quick turnaround after Metro Glass reported a 22 per cent drop in half-year net profit, lowered its full-year guidance and said it won't be paying any dividends as it struggles to turn around its Australian business.
It also highlighted the entry of new competitor APL in the New Zealand market.
"It's tough to look at Metro as a turnaround story as earnings are almost certainly going to go lower in the next two to three years, as residential activity cools in Australia and New Zealand.
"A situation that looks set to be exacerbated by increased capacity and competition in its industry. None of that is pretty but rather alarmingly the market capitalisation of Metro's equity is now less than the debt it owes its bankers."
Bennie thinks the banks may turn the screws on the company to try and raise capital to pay down debt and given where the share price sits that shapes as a brutally dilutive, discounted rights issue.