ASX 200 mining giants BHP Group Ltd (ASX: BHP) and Fortescue Ltd (ASX: FMG) were the two most traded ASX shares last month among investors using the Selfwealth trading platform.
This reflected the commencement of a short-and-sharp rotation out of ASX 200 bank shares into the mining shares after China announced various new stimulus measures.
Investors jumped on mining shares as soon as news of the stimulus broke. They anticipated that the new measures would raise demand for iron ore in China, leading to stronger iron ore prices.
Iron ore commodity values had fallen to two-year lows prior to the news of the economic stimulus.
The BHP share price rose 12.73% over the month, while Fortescue shares surged 13.19%.
Top 10 most traded ASX shares in September
Here are the top 10 most traded ASX shares in September by volume (incorporating both buy and sell orders), according to Selfwealth Ltd (ASX: SWF) data.
The percentage of buy orders gives an indication of investors' conviction on each ASX share.
| Rank | Top ASX shares by trading volume | Percentage of buy orders |
| 1 | BHP Group Ltd (ASX: BHP) | 59.8% |
| 2 | Fortescue Ltd (ASX: FMG) | 64.3% |
| 3 | Appen Ltd (ASX: APX) | 54.2% |
| 4 | Zip Co Ltd (ASX: ZIP) | 56% |
| 5 | Woodside Energy Group Ltd (ASX: WDS) | 69.9% |
| 6 | Mineral Resources Ltd (ASX: MIN) | 69.4% |
| 7 | ANZ Group Holdings Ltd (ASX: ANZ) | 50.3% |
| 8 | Pilbara Minerals Ltd (ASX: PLS) | 50.9% |
| 9 | Cettire Ltd (ASX: CTT) | 51.1% |
| 10 | Westpac Banking Corp (ASX: WBC) | 45.4% |
Top 10 most traded US stocks in September
Graphics processing units (GPUs) chip maker NVIDIA Corp (NASDAQ: NVDA) was the most traded US stock in September.
The Nvidia share price rose by 1.73% over the month.
Social media company Trump Media & Technology Group Corp. (NASDAQ: DJT), which is majority-owned by Presidential candidate Donald J. Trump, made the top 10 in September.
Trump set up the TRUTH Social app in 2022 after he was banned on Twitter, which is now known as X.
The site describes itself as 'a uniting force for freedom of expression'.
TRUTH Social's mission is to end Big Tech's assault on free speech by opening up the Internet and giving the American people their voices back.
Here are the other top 10 most traded US stocks in September among Selfwealth investors.
| Rank | Top US stocks by trading volume | Percentage of buy orders |
| 1 | NVIDIA Corp (NASDAQ: NVDA) | 72.7% |
| 2 | Tesla Inc (NASDAQ: TSLA) | 46.4% |
| 3 | Alphabet Inc Class A (NASDAQ: GOOGL) | 72.3% |
| 4 | Apple Inc (NASDAQ: AAPL) | 49.6% |
| 5 | Palantir Technologies Inc (NYSE: PLTR) | 69.5% |
| 6 | Amazon.com Inc (NASDAQ: AMZN) | 57.3% |
| 7 | Microsoft Corp (NASDAQ: MSFT) | 54.7% |
| 8 | MARA Holdings Inc (NASDAQ: MARA) | 68.3% |
| 9 | Intel Corp (NASDAQ: INTC) | 77.5% |
| 10 | Trump Media & Technology Group Corp (NASDAQ: DJT) | 56.1% |
