Top trades by New Zealand Sharesight users — September 2025
Welcome to the September 2025 edition of Sharesight’s monthly trading snapshot for New Zealand investors, where we look at the top 20 trades made by New Zealand Sharesight users. Below we will look at the top trades overall, plus the top trades in individual stocks, which allows us to observe the broader investment trends by Sharesight users in New Zealand, while also giving us an opportunity to zoom into the most popular stocks and the market-moving news behind them.
Top trades in September 2025
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This month, the top trades were strongly led by the Smartshares US 500 ETF (NZX: USF), followed by Microsoft (NASDAQ: MSFT) and NVIDIA (NASDAQ: NVDA). It was a strong month for ETF trading overall, with 9 of the top 20 trades consisting of ETFs. US tech stocks were also a particular focus for New Zealand investors over the period.
It should be noted that the assets in our trading snapshots are ordered by the number of Sharesight users trading that asset, while the size of the bars indicate the actual trade volume. So while there were more customers trading in MSFT, the volume of NVDA trades was higher, meaning that while there were fewer people trading in NVDA compared to MSFT, they made more trades.
Most-traded stocks in September 2025
Note: To get a closer look at this chart, you can right-click and open the image in a new tab (for desktop) or press-hold and download the image or open it in a web browser (for mobile).
This month’s top-traded stocks were led by MSFT, which saw its share price fluctuate, ultimately ending the month on an upward trend. The top trades were followed by NVDA, which saw its share price surge after announcing plans to invest in OpenAI.
Let’s look at some of the market-moving news behind some of this month’s top stocks:
Microsoft (NASDAQ: MSFT)
- Despite strong earnings, Microsoft share price has been in a rut
- Leading broker ranks Microsoft among top software picks
NVIDIA (NASDAQ: NVDA)
- NVIDIA reveals plan to invest up to US$100 billion in OpenAI
- Share price is up 29% this year, over 1000% since beginning of 2023
Air NZ (NZX: AIR)
- Air NZ makes progress on fleet upgrades
- Leadership team experiences another shake-up
Rocket Lab (NASDAQ: RKLB)
- Rocket Lab share price has skyrocketed 700% YoY
- Share price drops on news of US$750 million equity offering
Tesla (NASDAQ: TSLA)
- Tesla CEO Elon Musk buys almost US$1 billion-worth of Tesla shares in effort to gain more control
- Share price nears 2025 high after 5-day streak
Alphabet (NASDAQ: GOOG)
- Alphabet has best quarter in two decades, fuelled by AI
- Share price grows as Google parent hits US$3 trillion market cap
Amazon (NASDAQ: AMZN)
- Could Amazon’s same-day grocery delivery allow it to surpass Walmart?
- Stagnant Amazon share price “about to change”, says analyst
- Amazon’s AWS CEO criticises staff for slow product rollouts
Apple (NASDAQ: AAPL)
- Apple share price rallies following iPhone 17 launch
- CEO defends iPhone price hike, says it’s not linked to tariffs
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