The opposition Labour and Green parties have pledged to restructure the energy sector, making a single, centralised electricity buyer to push down prices, squeezing company margins and returns to shareholders. A general election is scheduled for this September, and polls indicate the National government will return for a third term.
Xero, the cloud-based accounting software firm, dropped 2.4 percent to $43.45, as a record daily trade of $113 million, or about 2 percent of the company, changed hands. Ryman Healthcare fell 5.9 percent to $8.20, with $71 million of its stock passing through the bourse.
Clothing chain Hallenstein Glasson tumbled 8.2 percent to $2.80 to be the day's worst performer. Today is the last day for the retailer on the benchmark index after declining 21 percent this year to be the worst performer on the NZX50. Pacific Edge rose 0.7 percent to $1.55. The bladder cancer detection test developer whose shares have gained 16 percent this year will take the retailer's place.
Kathmandu Holdings fell 1.5 percent to $3.34. The outdoor goods retailer is due to report earnings on Monday.
"Following what we have seen out of Hallensteins, Pumpkin Patch, even the Warehouse has been a wee bit softer lately, so it is probably a slight concern there about the numbers they're going to be producing next week," Garden said.
Pumpkin Patch rose 1.8 percent to 56 cents. The children's clothing retailer sank 19 percent to a record low of 55 cents this week, after the company reported a 98 percent drop in profit for the six months ended Jan. 31.
Brisbane-based jeweller Michael Hill International dropped 1.5 percent to $1.34. Online auction website Trade Me Group gained 1.5 percent to $3.99. Warehouse Group, New Zealand's largest listed retailer was unchanged at $3.20.
Telecom fell 0.6 percent to $2.375. Auckland International Airport was unchanged at $3.88 and Fletcher Building, New Zealand's largest listed company, rose 1.9 percent to $9.77.