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 has gained +0.4% so far today, lifting its monthly rise to +1.0% and sitting +4.0% higher than this time last year.
THE MAIN GAINERS
Vulcan Steel (VSL, #31) leads the market with a sharp +6.5% jump, up +8% over the past five days but still down -2% year-on-year. Mainfreight (MFT, #9) adds +2%, though it falls -7% over the past month and -17% year-on-year. Oceania Healthcare (OCA, #43) also rises +2%, down -13% over six months and -12% year-on-year. Vector (VCT, #12) is up +1%, gaining +3% in five days and +21% compared to last year.
Vulcan Steel Limited
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THE MAIN DECLINERS
Among the 28 decliners, Briscoe Group (BGP, #24) dropped -2%, down -5% in the past five days but still +25% year-on-year. Tower (TWR, #40) slipped -1% after a +6% monthly rise and +49% yearly gain. Ryman Healthcare (RYM, #18) fell -1%, extending its five-day loss to -6% and sitting -46% lower year-on-year. Sky Network (SKT, #47) also eased -1%, though it remains +11% higher than a year ago.
Tower
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SMARTSHARES EFTs
| 1-day | 5-day | 6-month | YTD | 1Y | |
| NZ Top 50 ETF (FNZ) | +0.3% | -0.7% | -2.4% | -1.8% | +1.2% |
| NZ Top 10 ETF (TNZ) | +0.4% | -0.7% | -4.2% | -7.4% | -2.3% |
| S/P NZX50 ETF (NZG) | +0.4% | -0.6% | -1.9% | -3.1% | +1.3% |
| NZ Dividend ETF (DIV) | +1.0% | +0.9% | +3.3% | +4.2% | +6.7% |
KEY ANNOUNCEMENTS
Mercury Energy (MCY, #5) will hold a live webinar on Tuesday, 19 August 2025 at 11:00 am, where Chief Executive Stewart Hamilton and Chief Financial Officer Richard Hopkins will present the company’s financial, operational, and strategic performance for the year ended 30 June 2025.
Infratil (IFT, #4) has released its 30 June 2025 independent valuations, showing mixed movements across key investments.The valuation of Longroad Energy is down US$27mln from March to US$1.18b for Infratil’s 37.7% stake, driven by higher discount rates due to rising base rates and increased uncertainty from tariffs and the “One Big Beautiful Bill,” despite new projects coming online. Galileo’s midpoint valuation has eased €4m to €168.4m for Infratil’s 38% share, reflecting higher discounts on early-stage projects amid softer demand, partly offset by capital injections and project progress. Qscan’s midpoint valuation has risen A$12mln to A$426mln for Infratil’s 57.2% share, boosted by the timing of cash flows and new clinic acquisitions, partly offset by minor operating adjustments.
On a NZ dollar basis, portfolio valuations now stand at: Longroad Energy $1.95b (March: $2.11b), Galileo $326.6mln (March: $326.0mln), Mint Renewables $30.3mln (March: $22.8mln), and Qscan Group $460.2mln (March: $454.5mln).
NZX50 Energy Sector
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Click on the chart title to find more about this sector, including its components.
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