Here are the key things you need to know about in the NZX markets over the past 24 hours. Changes are as at 3:00 pm and may change when the market closes at 4:45 pm.
WHAT THE NZX 50 INDEX IS DOING
The NZX50 is shifting towards a gain of +0.3% today, after gaining +1.1% over the past five days. Over the last six months the index has risen +8.2% and is up +6.9% year‑on‑year.
THE MAIN GAINERS
Among 44 gainers, Meridian Energy (MEL, #2) rose +3%, though it is down -2% for the month and -4% over the year. Serko (SKO, #49) and a2 Milk (ATM, #7) each added +2%; Serko has gained +10% in the past month but remains -7% lower year‑on‑year, while a2 Milk has advanced +6% in the past week and is up +50% over 12 months. Mercury (MCY, #5) gained +1%, extending a six‑month rise of +19% and a +9% annual increase.
Meridian Energy
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THE MAIN DECLINERS
On the downside, 36 stocks declined. Oceania Healthcare (OCA, #45) fell -4%, though it is up +6% for the month and down -11% year‑on‑year. Fletcher Building (FBU, #14), Auckland International Airport (AIA, #3) and Investore Property (IPL, #47) each slipped -2%. Fletcher has gained +7% in the past week and +9% over the year, AIA is up +3% year‑on‑year despite a -3% six‑month fall, and Investore has risen +6% in the past week and +3% over the year.
Oceania Healthcare
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SMARTSHARES EFTs
| 1-day | 5-day | 6-month | YTD | 1Y | |
| NZ Top 50 ETF (FNZ) | +0.3% | +1.8% | +7.9% | +3.4% | +5.4% |
| NZ Top 10 ETF (TNZ) | -0.3% | +0.3% | +3.9% | -6.3% | -1.7% |
| S/P NZX50 ETF (NZG) | +0.3% | +0.5% | +6.6% | +0.4% | +4.0% |
| NZ Dividend ETF (DIV) | 0% | +2.5% | +18.7% | +12.5% | +13.5% |
KEY ANNOUNCEMENTS
New Zealand’s major gentailers welcomed the Government’s response to the Frontier Economics review of the electricity market, highlighting greater clarity on investment and energy security. Meridian Energy (MEL, #2) said the Crown’s willingness to participate in equity raisings for Mixed Ownership Model companies marks the biggest shift in capital settings since its 2013 listing, with CEO Mike Roan noting it will accelerate new generation. Mercury (MCY, #5) supported the focus on boosting security and enabling market-led responses, while acknowledging a letter from Finance Minister Nicola Willis to its board. Genesis Energy (GNE, #16) said the decisions align with its Gen35 strategy, particularly around fuel security and long-duration firming, and will help deliver renewables and system resilience. Contact Energy (CEN, #6) also welcomed the package, with CEO Mike Fuge backing initiatives that accelerate electrification and support an orderly transition to renewables.
Vulcan Steel (VSL, #26) has completed the acquisition of 100% of Roofing Industries Limited from Francis and Gellatly Holdings, with settlement effective 30 September after all conditions in the sale and purchase agreement were satisfied.
Synlait Milk (SML) announced the resignation of Chief Revenue Officer Naiche Nogueira, who will leave at the end of 2025. CEO Richard Wyeth credited him with expanding the Advanced Nutrition and Ingredients businesses, launching Nutrabase powders and securing global customers, and said the company will now begin the process of appointing a new executive leader.
Auckland International Airport (AIA, #3) has closed its NZ$200mln retail bond offer following a successful bookbuild, with no public pool. The fixed‑rate bonds, carrying an interest rate of 4.04% per annum (0.85% margin over the base rate), will be issued on 8 October 2025 and mature on 8 April 2031, and are expected to be quoted on the NZX Debt Market.
NZX50 Energy Sector
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