"There's still no news from Bellamy's, the company has been in a trading halt for three days now after saying two - that's obviously got people anxious about whether there's more issues regarding particularly the sales of infant formula," Solly said. "It's potentially a case of the company not having disclosed information to investors in a timely fashion. There's some evidence there has been a market share gain by A2 from Bellamy's, Blackmores and others - it may not all be negative news for A2."
SkyCity Entertainment Group declined 3.8 per cent to $3.85, Summerset Group Holdings fell 2.8 per cent to $4.50, and Freightways declined 2.2 per cent to $6.65.
Australia & New Zealand Banking Group was the best performer on the index, up 1.2 per cent to $31.31. Air New Zealand gained 1.2 per cent to $2.15 while New Zealand Refining Co rose 1.2 per cent to $2.58.
Outside the benchmark index, Veritas Investments was placed in a trading halt at 22 cents before announcing it will wind up its unprofitable Nosh supermarket business to keep in the good graces of its lender, ANZ Bank New Zealand. It's dropped 54 per cent this year.
Intueri Education Group shares slumped 25 percent to a record low of 3 cents amid signs Australian investors are trimming their holdings ahead of the private education provider's delisting from the ASX next month.
Abano Healthcare gained 2 per cent to $8.15. The company beat guidance as it lifted first-half earnings 62 per cent from a year earlier to $6.3 million, on an expanding dental network, giving the board confidence in the current strategy as they rejected a partial takeover bid by dissident shareholders as significantly undervaluing the business.