September could be a good time to look at where your portfolio is heading.
Not just next week or next month, but over the next five to ten years.
ASX exchange traded funds (ETFs) can be a good way to invest in long-term themes, quality companies, and entire sections of the market without having to pick every individual winner.
With that in mind, here are three fantastic ASX ETFs that could be worth a look in September.

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Global X Artificial Intelligence ETF (ASX: GXAI)
The Global X Artificial Intelligence ETF could be an ASX ETF to consider for investors wanting exposure to the AI boom.
This fund gives investors access to companies involved in artificial intelligence and the technology that supports it.
That can include businesses linked to chips, cloud computing, software, automation, data infrastructure, and other parts of the AI ecosystem.
Another positive with the ETF is that it does not require investors to make a single call on which AI company will dominate.
That is important because the AI opportunity is large, but it is also moving quickly. Some winners today may not be the winners of tomorrow.
The Global X Artificial Intelligence ETF gives investors a way to back the broader theme while spreading the risk across a basket of companies.
VanEck MSCI International Quality ETF (ASX: QUAL)
The VanEck MSCI International Quality ETF takes a very different approach.
Rather than focusing on one fast-moving theme, this ASX ETF looks for international companies with quality characteristics.
That means businesses with strong profitability, healthy balance sheets, and stable earnings. This could be a smart way to invest globally.
The world is full of companies, but not all of them are worth owning. Some are highly cyclical, some carry too much debt, and some struggle to grow consistently. The VanEck MSCI International Quality ETF tries to tilt investors toward the stronger names.
This could make it a strong long-term holding for investors who want global exposure with a quality filter.
Betashares S&P/ASX Australian Technology ETF (ASX: ATEC)
A third ASX ETF to look at is the Betashares S&P/ASX Australian Technology ETF.
This fund gives investors exposure to Australian technology stocks.
The local tech sector is much smaller than the US market, but that does not mean it should be ignored.
Australia has produced some impressive technology businesses across software, online marketplaces, payments, data, and digital services.
The Betashares S&P/ASX Australian Technology ETF gives investors a way to gain exposure to this part of the ASX without needing to choose one company.
It can be volatile, especially when growth shares fall out of favour.
But if more of the Australian economy keeps shifting online and local technology companies continue expanding offshore, this ETF could have plenty of long-term potential.