Metro Performance Glass led the index lower, dropping 2.9 per cent to $1, with Sky Network Television down 2.5 per cent to $2.78 and Fletcher Building falling 1.5 per cent to $7.69.
Comvita was the best performer, up 3 per cent to $8.65. A2 Milk rose 1.1 per cent to $8.36 and Synlait Milk gained 0.9 per cent to $7.04.
Summerset Group gained 0.2 percent to $5.53.
The retirement village operator and developer lifted fourth-quarter sales 31 per cent, setting a quarterly record, due largely to a jump in the resale of occupation rights. Last month Summerset raised annual earnings guidance on the strength of resale volumes and margins, projecting underlying profit of between $77m and $79m in calendar 2017, up from a previous forecast of $72m to $75m.
"The company upgraded their profit a few weeks ago so that announcement today has had little response from the market," Williamson said.
Trustpower rose 0.3 per cent to $6.04. The company owns 65 per cent of King Country Energy, and has teamed up with King Country Electric Power Trust, which owns 19.98 per cent, to jointly offer $5 a share for the remaining shares in King Country Energy.
The target company today said its independent committee has recommended shareholders accept the joint venture takeover offer.