Vector led the market higher, up 2.5 per cent at $3.73 on 126,000 shares. Auckland city's electricity and gas distribution network operator ended the week down 2.4 per cent after a draft Commerce Commission decision declined assistance to help reduce the risk the firm faces from solar and other technologies that may reduce load on its network.
Telecommunications utility Chorus rose 1.6 per cent to $5.78, recovering some of its loss over the past fortnight since a draft consultation paper from the Commerce Commission spooked some investors into thinking the network operator may face a tougher regulatory framework than they thought.
Retirement village stocks bounced back from recent selling pressure, with Ryman Healthcare up 2.2 per cent at $11.58, Summerset Group rising 0.7 per cent to $5.54, and Metlifecare increasing 1.4 per cent to $4.47.
Williamson said there was a bit of bargain-hunting after the retirement stocks were weighed on by a slowdown in Auckland's property market, which is seen as a tailwind for the sector.
Fisher & Paykel Healthcare rose 0.3 per cent to $15.40 on a volume of 1.5 million shares, more than twice its 90-day average. Williamson said the shares were sold off when some investors were disappointed by its record profit announcement earlier this week.
Fonterra Shareholders' Fund units rose 1.3 per cent to $3.99, having dropped to a record low yesterday after Fonterra said April milk collection was down by about 10 per cent from a year earlier. Fonterra Cooperative Shares advanced 1.3 per cent to $4.
Spark New Zealand was the most traded stock on a volume of 3.9 million shares, still down on its average of 5.8 million. The shares rose 1.5 per cent to $3.815. Goodman Property Trust increased 1.4 per cent to $1.855 with 2.4 million units changing hands, while Argosy Property was up 1.2 per cent at $1.32 on a volume of 2.2 million.
Of other stocks trading on volumes of more than a million shares, Meridian Energy fell 0.7 per cent to $4.24, Kiwi Property Group was down 0.3 per cent at $1.575, Pushpay Holdings decreased 0.3 per cent to $3.79, and Precinct Properties New Zealand was unchanged at $1.62.
Synlait Milk reported the biggest decline for the day, down 3.1 per cent at $8.87, its lowest close since December. A2 Milk was up 1.2 per cent at $15.80.
Sky Network Television hit an all-time low $1.19, ending the day down 1.6 per cent at $1.20.
Infratil fell 0.7 per cent to $4.27 after saying the issues the Commerce Commission plans to assess when considering the company's joint purchase of Vodafone New Zealand were in line with expectations. Infratil said it believes there are strong reasons for the deal to be cleared. Separately, Infratil sold Snapper for a nominal sum, and said its Longroad Energy investment has started building a Texas solar project.
WEL Networks more than doubled its annual profit, driven by an expanding fibre business and increasing power connections. The company's 2023 bonds, paying 4.9 per cent annual interest, closed at a yield of 3.45 per cent, down 25 basis points.
The Local Government Funding Agency's 2025 bonds, paying 2.75 per cent interest, were the most active debt security with 1.3 million notes traded. The yield was unchanged at 2.07 per cent.