Top trades by Australian Sharesight users — September 2025

Welcome to the September 2025 edition of Sharesight’s monthly trading snapshot for Australian investors, where we look at the top 20 trades made by Australian 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 Australian Sharesight users, 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 Vanguard’s Australian Shares Index (ASX: VAS) and MSCI Index International Shares (ASX: VGS) ETFs, followed by the iShares S&P 500 (ASX: IVV) ETF. It was an ETF-heavy month overall, with 11 of the top 20 trades belonging to ETFs.

Most-traded stocks in September 2025

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This month’s top traded stocks were led by CSL (ASX: CSL), which has seen a downward trend in its share price since mid-August. The top trades were followed by NVIDIA (NASDAQ: NVDA), which saw its share price fluctuate throughout the month, but climbed following the announcement of its investment in OpenAI.

Let’s look at some of the market-moving news behind some of this month’s top stocks:

CSL (ASX: CSL)

• CSL share price hits 5-year low following restructuring announcements and weaker-than-expected profit forecasts
• Trump’s pharmaceutical tariff wipes over AU$1 billion from CSL value

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

Woodside Energy (ASX: WDS)

• Woodside share price plummets, driven by weak financials
• Is Woodside an undervalued LNG powerhouse?

Woolworths (ASX: WOW)

• Woolworths share price drops 15% after profit miss
• Woolworths could be forced to pay AU$750 million to underpaid employees

BHP (ASX: BHP)

• BHP called “un-Australian” over plans to cut 750 jobs
• Leading brokers most bearish on BHP in 2 years

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

4D Medical (ASX: 4DX)

• 4D Medical share price is up 787% since July
• 4D Medical achieves “historic” FDA approval for lung imaging tool

DroneShield (ASX: DRO)

• DroneShield to join ASX 200
• Share price hits record high, driven by global drone threats

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FURTHER READING

• Subscribe to Sharesight20 trading snapshots
• How Sharesight calculates your investment performance
• Sharesight users' top 20 trades – August 2025