"It's a little bit firmer today, the shares have been weakening for a while now and it has really come off the boil but it's showing a bit of strength today," Williamson said. "There's possibly a bit of bargain hunting, and the slightly weaker currency might be a reason too."
Trade Me Group gained 1.4 per cent to $4.47, Fletcher Building rose 1.3 per cent to $6.28 and Genesis Energy advanced 1.1 per cent to $2.235.
A2 Milk was again the worst performer on the index, dropping 3 per cent to $12, with its supplier Synlait Milk falling 2.6 per cent to $9.56.
Both stocks have been weakening since Nestle announced it has launched a competing A2 milk protein infant formula in China, with investors unsettled by competition in the market which has proven so fruitful for A2 thus far. A negative report today from an Australian broker may have spurred selling, Williamson said.
Z Energy fell 1.7 per cent to $7.10, Infratil declined 1.4 per cent to $3.16 and Trustpower was down 1.4 per cent to $5.66.
Outside the benchmark index, dual-listed AMP shares dropped 3.6 per cent to $4.33. In Australia, the wealth manager has come under fire over revelations about its conduct made at a Royal Commission public inquiry into misconduct within the banking and finance industries. Chief executive Craig Meller quit on Friday over the scandal.
On the ASX, the shares traded down 2.3 per cent to A$4.075 around 5pm New Zealand time, and have dropped 15 per cent since AMP first began being publicly questioned by the Royal Commission last week.
"It remains under significant pressure, with regulators looking closely at what's going on, and investors have lost a lot of confidence in that stock," Williamson said.
ASX-listed Vocus Group had gained 1.6 per cent to A$2.275 at around 5pm New Zealand time. It announced today that it will hold on to its New Zealand businesses including CallPlus, 2talk, Orcon, Slingshot, Flip, and local fibre line provider previously called FX Networks, saying it didn't get any offers attractive enough to entice a sale.
The Melbourne-based company put the New Zealand business on the block last October with a view to selling it by June 2018 to help repay debt taken on during a period of rapid expansion. Today it said it's ended all discussions with interested parties due to the lack of good offers, and the board "intends to continue to invest in and grow Vocus NZ to enable that business to realise its strategic potential for shareholders."