NEXTDC Ltd (ASX: NXT) has become one of the clearest ways for Australian investors to gain exposure to the artificial intelligence (AI) boom.
I think the opportunity could become much larger from here.
For investors comfortable with the risks that come with such rapid expansion, NEXTDC would be high on my ASX AI buy list.
AI needs somewhere to run
The investment case starts with a simple physical constraint.
AI requires enormous amounts of computing power, and that infrastructure needs secure buildings, huge amounts of electricity, sophisticated cooling, and reliable connections to networks and cloud platforms.
NEXTDC builds and operates the data centres that bring those requirements together.
AI is also changing what customers need from these facilities. NEXTDC says demand is moving towards larger deployments, higher power densities, and infrastructure capable of supporting advanced computing and liquid cooling.
I like this position because NEXTDC does not need to predict which AI model or application will eventually dominate.
If companies continue spending heavily on computing infrastructure, they will need somewhere capable of running it.
Customers are already committing
The strongest part of the story for me is that NEXTDC is seeing customers reserve enormous amounts of capacity ahead of delivery.
At the end of FY26, contracted utilisation had reached 740.1MW, while only 175MW was already billing.
That gap represents a substantial amount of contracted capacity still to be built, delivered, and eventually converted into revenue.
Earlier in 2026, NEXTDC estimated that its contracted utilisation at the time could generate more than $1 billion of EBITDA once delivered, without assuming additional customer wins.
For me, this makes the AI thesis much more tangible.
NEXTDC is investing billions of dollars because customers are signing contracts for capacity, rather than management simply building facilities and hoping demand arrives later.
There is a price for rapid expansion
This opportunity requires an extraordinary amount of capital.
NEXTDC has been raising equity, debt, and hybrid funding to accelerate construction, while major developments need access to land, power, equipment, and skilled workers.
Execution therefore becomes critical. Delays, cost overruns, financing pressures, or slower AI infrastructure spending could all hurt returns. Investors also need patience because there can be a long gap between signing a customer and the new capacity beginning to generate revenue.
I think those risks justify treating NEXTDC as a growth investment rather than assuming AI demand guarantees success.
Foolish takeaway
What excites me about NEXTDC is the amount of future business already taking shape.
AI is pushing computing requirements sharply higher, and customers are committing to NEXTDC’s capacity years before much of it starts billing.
There is a lot of expensive construction still ahead, but I think this ASX stock has positioned itself in a valuable part of the AI infrastructure chain.
If it delivers the capacity already contracted and continues winning demand, I believe it could become one of the ASX’s standout long-term AI investments.
The post Could this be one of the best AI investments on the ASX? appeared first on The Motley Fool Australia.
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* Returns as of 1 August 2026
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Motley Fool contributor Grace Alvino has no position in any of the stocks mentioned. The Motley Fool Australia’s parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.