ASX Data Centre Stocks 2026-NextDC vs Macquarie Tech vs DigiCo
Data centres are central to Australia’s AI, cloud and sovereign-data ambitions. Demand is rising, but the three ASX-listed names most often discussed - NextDC (ASX: NXT), Macquarie Technology Group (ASX: MAQ) and DigiCo Infrastructure REIT (ASX: DGT), offer very different exposures.
This guide breaks down the sector in short, practical sections. It is an educational overview, not personal financial advice.
Australian Data Centre Market Outlook for 2026
The Australian data-centre market is forecast to grow from US$4.8 billion in 2025 to US$5.4 billion in 2026, with IMARC projecting US$8.2 billion by 2034.
AI, cloud adoption, hyperscale expansion and data-sovereignty requirements are driving the market. However, growth will depend on whether operators can secure power, approvals, customers and funding.
Why AI Is Changing the Data-Centre Industry
AI workloads need more electricity, cooling and connectivity than traditional cloud workloads. Operators are therefore securing land, grid access and capacity well before facilities are completed.
NEXTDC has highlighted a A$2.2 billion capital plan for AI-ready infrastructure and A$8.4 billion in liquidity. The opportunity is significant, but so are the funding and delivery requirements.
Why Power and Approvals Matter
Demand alone will not determine which operators succeed. Projects must secure reliable power, manage grid-connection timelines and control construction costs.
The Australian Government’s 2026 expectations also cover energy efficiency, water use, local skills, national interest and community impact.
The key takeaway: powered, permitted and contracted capacity is more valuable than capacity that exists only on paper.
Sovereign Data and Low Latency Are Becoming Advantages
Government agencies, regulated businesses and critical-infrastructure providers increasingly want data processed in Australia.
Local data centres can support data sovereignty, reduce latency and improve resilience. These advantages may influence customer demand, approvals and long-term asset values.
Quick company snapshot - NXT, MAQ, DGT
NextDC Stock Outlook — ASX: NXT
What NextDC does
NextDC is Australia’s largest pure-play data-centre operator. It provides colocation, interconnection and hyperscale-ready capacity.
What is driving growth?
The main drivers are AI campuses, hyperscale contracts, higher contracted utilisation and new facilities.
NEXTDC has publicised its planned S7 sovereign AI campus in Sydney and approval for its approximately A$2 billion M4 technology campus at Fishermans Bend.
Main risk
The growth strategy requires heavy capital spending. Investors should watch funding, construction timelines, power availability and the conversion of planned capacity into contracted revenue.
Best suited to
Investors seeking direct exposure to AI and hyperscale data-centre growth who are comfortable with higher capital intensity.
Macquarie Technology Group — ASX: MAQ
What Macquarie Technology does
Macquarie Technology Group combines data centres with cloud services, cybersecurity, managed services and telecommunications.
What is driving growth?
Its data-centre business serves enterprise, hyperscale and government customers. The company says IC3 Super West has full end-state power secured and is ready for service in 2026.
Main risk
Investors must assess both infrastructure execution and the performance of the wider technology-services business.
Best suited to
Investors who want data-centre exposure alongside recurring technology and managed-services revenue.
DigiCo Infrastructure REIT — ASX: DGT
What DigiCo does
DigiCo is a listed real-estate vehicle focused on data-centre investment, operation and development across Australia and North America.
What is driving growth?
The key drivers are occupancy, new leasing, rent escalations, development completions and portfolio expansion.
Main risk
DigiCo is sensitive to interest rates, property valuations, tenant concentration, lease expiries and financing costs.
Best suited to
Investors seeking property-income exposure to digital infrastructure rather than a pure technology-services or colocation business.
NXT vs MAQ vs DGT: Quick Comparison
| Stock | Main exposure | Growth profile | Key risk |
| NXT | Pure-play colocation and hyperscale capacity | Highest direct AI and hyperscale exposure | Capex, funding and delivery risk |
| MAQ | Data centres plus cloud and managed services |
More diversified infrastructure and services growth | Execution across several business lines |
| DGT | Data-centre real estate and leases | Income and property-value growth | Rates, valuations and tenant concentration |
Editorial comparison based on business models and disclosed strategies. It is not a share-price forecast or recommendation.
Which ASX Data Centre Stock Has the Best Growth Potential?
There is no single answer because each stock captures a different part of the sector.
NEXTDC offers the most direct AI-infrastructure exposure, but it also carries the greatest capital and execution demands.
Macquarie Technology Group provides a broader mix of data centres and technology services, which may create a more diversified revenue base.
DigiCo is the most property-focused option, with returns linked to leases, occupancy, rent growth and asset valuations.
How an investor might position across ASX data centre stocks
If the priority is direct AI-infrastructure growth
NextDC is the clearest pure-play option in this group. Its large campus pipeline and hyperscale focus provide substantial upside if demand converts into contracted revenue. The same strategy can create downside if funding costs rise, projects are delayed or capacity is built ahead of customers.
If the priority is a broader technology-infrastructure mix
Macquarie Technology Group may appeal to investors who prefer a combination of sovereign data centres and managed technology services. Its diversified model can reduce dependence on a single facility or customer type, although it also makes the investment case less straightforward than a pure property or pure colocation story.
If the priority is property income and digital-infrastructure real estate
DigiCo is the most property-oriented of the three. Its appeal depends on the quality and duration of its leases, occupancy, tenant creditworthiness and the REIT’s ability to fund development without weakening the balance sheet.
A blended approach can spread exposure across the value chain—but diversification does not remove sector risk. All three companies remain exposed, in different ways, to electricity availability, construction costs, interest rates, regulation and the pace of AI adoption.
Key metrics & what to watch
- Power capacity & PUE (efficiency): AI workloads need substantial MW capacity; sites that secure power early have an advantage.
- Contracted vs uncontracted capacity: The proportion of forward-contracted capacity helps forecast revenue.
- Lease tenor & escalators (for REITs): Longer leases with CPI-linked escalations protect income.
- Balance-sheet flexibility: Capex plans require funding—watch leverage and access to capital markets.
Final thoughts - sector outlook and practical takeaway
Australian data centres are becoming core infrastructure for the AI and cloud economy. The long-term demand story is compelling, but the sector is not a shortcut to easy returns. The companies that create lasting value will need to translate demand into powered sites, signed contracts, reliable operations and attractive returns on capital.
The three ASX-listed names offer distinct exposures:
- NextDC (NXT): the most direct pure-play exposure to hyperscale and AI-ready colocation, with significant capex and delivery risk.
- Macquarie Technology Group (MAQ): a blend of sovereign data centres and technology services, offering diversification but requiring analysis across several business lines.
- DigiCo (DGT): a property-focused route into digital infrastructure, with returns shaped by leases, occupancy, valuations and interest rates.
For investors, the right question is not simply “Which data-centre stock will benefit from AI?” It is: Which part of the value chain do I want to own, how much capital intensity can I tolerate, and what evidence shows that future capacity will earn a return?
FAQs
Is NEXTDC the best Australian data-centre stock?
NEXTDC is the clearest pure-play listed exposure to Australian data centres. Whether it is the best investment depends on valuation, funding needs, execution and the investor’s tolerance for capital-intensive growth.
Does Macquarie Technology Group only operate data centres?
No. Macquarie Technology Group also provides cloud, cybersecurity, managed services and telecommunications. Its broader model means investors should assess more than its data-centre facilities.
Is DigiCo a data-centre operator or a REIT?
DigiCo is structured as a real-estate investment vehicle focused on digital infrastructure. Its performance is influenced by property income, occupancy, leases, development and interest rates.
Why is electricity so important for AI data centres?
AI servers consume substantial power and generate significant heat. Data centres therefore need reliable electricity, advanced cooling and sufficient grid capacity to operate and expand.
Are Australian data-centre stocks defensive investments?
Not necessarily. Data-centre demand may be resilient, but these stocks can still face high capex, interest-rate pressure, construction delays, customer concentration and valuation risk.
What is more important: demand or contracted capacity?
Contracted capacity is generally more useful for assessing near-term revenue visibility. Broad market demand matters, but it must translate into signed customer commitments and operating facilities.
Can I use these stocks as an AI investment?
They can provide infrastructure exposure to AI, but they are not identical to semiconductor or software companies. Their returns depend on property, power, financing, construction and customer contracts as well as AI demand.
Are these stock forecasts guaranteed?
No. Market forecasts and company guidance can change quickly. Investors should check the latest ASX announcements, financial results and valuation before making a decision.
Company announcements, financial results and market conditions can change. Readers should verify the latest information and consider their own circumstances or seek licensed financial advice before investing.
