NEXTDC rerates on 296.8MW order book converting into billings through FY29

NEXTDC (ASX: NXT) has moved sharply higher after a run of announcements that changed how much future capacity investors can reasonably expect the company to monetise.

The biggest trigger was the 25 February 2026 half-year result, when contracted utilisation jumped 137% to 416.6MW and the forward order book reached 296.8MW, with that capacity expected to convert into billings from FY26 to FY29. For a data centre owner, that is the core valuation driver: not just built capacity, but contracted megawatts that can be turned into recurring revenue.

That announcement landed after a busy December in which NEXTDC disclosed large customer contract wins, lifted FY26 capex guidance and secured a high-profile Memorandum of Understanding (MoU) with OpenAI for sovereign AI infrastructure at S7 Sydney. The stock’s move over the past 12 months reflects that sequence.

It has not simply been a rerating on artificial intelligence enthusiasm. It has been a response to evidence that demand is arriving, approvals are being secured and management is choosing to spend more because customers are committing.

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The rerating case still needs proof

The 12-month share price story is tied closely to three announcements. First came the 1 December 2025 utilisation update, which added 71MW of pro forma contracted utilisation and pushed FY26 capex guidance up by $400m to $2.2bn to $2.4bn.

Then, on 22 December, another utilisation update added 96MW and lifted the forward order book to 301MW. Those two updates told the market that sales momentum had accelerated far faster than many expected.

The OpenAI MoU on 5 December added a different element. It did not create immediate billed revenue, but it gave investors a credible anchor tenant and a narrative for S7 Sydney as a sovereign AI campus.

In our view, that mattered less as a branding exercise and more because hyperscale AI workloads need very large, power-dense facilities. If S7 can attract that class of customer, the long-dated pipeline becomes more tangible.

The largest share price reaction, though, came with the 1H26 result on 25 February. That release combined revenue growth, earnings growth, a record contracted utilisation figure, approved capacity at key sites and another capex increase to $2.4bn to $2.7bn. It effectively confirmed that the earlier December updates were not one-off wins.

Nextdc develops operates data

NEXTDC develops and operates data centres across Sydney, Melbourne, Brisbane, Perth, Darwin, Sunshine Coast, Geelong, Gold Coast and selected Asia-Pacific markets including Kuala Lumpur, Tokyo and Auckland. Its business model is straightforward, even if the build program is capital heavy.

It provides colocation, interconnection, security, power and connectivity services to cloud providers, enterprise customers and Government users. It also runs the Cloud Centre partner ecosystem and AXON network connectivity services, which deepen customer relationships and make facilities more useful once customers are installed.

What matters for investors is the quality of the revenue stream. Colocation contracts tend to be sticky because moving critical infrastructure is disruptive and expensive. Interconnection revenue can grow as a customer ecosystem inside each site becomes denser. Power passthrough is less attractive from a margin perspective, but it is part of the commercial model for high-density workloads.

This is why billing utilisation is such an important metric.

Contracts are doing the heavy lifting

A data centre can have a large development pipeline, but value is created when contracted capacity becomes billed capacity and supports net revenue and underlying Earnings Before Interest, Tax, Depreciation and Amortisation (EBITDA). NEXTDC’s guidance for FY26 net revenue of $390m to $400m and underlying EBITDA of $230m to $240m gives investors a near-term benchmark, but the bigger prize is the conversion of the order book over several years.

The single most important driver of NEXTDC’s valuation right now is the 296.8MW forward order book and the pace at which it converts into revenue.

Management expects that conversion across FY26 to FY29, with 152MW expected in FY27 alone. We think this matters more than almost any short-term earnings multiple debate, because the stock is ultimately tied to how much usable, contracted capacity becomes cash-generating capacity.

That said, this growth is not free. The same 25 February update that thrilled the market also increased capex guidance again.

Cash will shape the argument

NEXTDC is now preparing a subordinated notes offering and is evaluating a JVCo structure for S4 and S7. Those steps make sense. A company building hyperscale infrastructure cannot fund everything from operating cash flow. But they also remind investors that this is a balance sheet story as much as a demand story.

We believe the market is currently giving NEXTDC credit for two things at once: strong repeatable demand and credible funding options. The company has cited $4.2bn of liquidity and no debt maturities before FY30, which lowers immediate financial stress. Still, if contract wins slow or conversion slips, elevated capex could become a heavier burden on the stock.

There is a clear distinction between structural developments and near-term events. Structural drivers include cloud adoption, increasing data intensity, the need for sovereign digital infrastructure, and the rise of AI training and inference workloads that require more power and more specialised data centre capacity. NEXTDC’s 3.5GW-plus pipeline across Australia and international markets is aimed squarely at that demand.

Contracts are doing the heavy lifting

In our opinion, that is the right way to frame the stock today. The structural thesis is intact and increasingly visible in customer wins. The short-term risk is whether the company can keep bringing on capacity, funding it sensibly and converting orders into billings on the promised timetable.

Technically, the stock should strengthen further if three conditions hold. First, contracted utilisation needs to keep rising, or at least the existing forward order book needs to convert into billed utilisation broadly in line with management’s schedule.

Second, funding initiatives such as subordinated notes or a JVCo for S4 and S7 need to be completed without signalling stress. Third, new capacity at projects like KL1, M4 and S4 needs to remain on schedule.

A material weakening would likely come from the opposite pattern. If billing conversion lags, if capex rises again without matching contract wins, or if financing arrives on terms that dilute existing shareholders too heavily, the market will reassess what it is willing to pay. Supply chain problems, approval delays and interest rate volatility on variable-rate debt also remain genuine risks.

The final call from here

It is that the latest announcements showed tangible proof of demand, approvals and future billings at a scale that supports compounding over several years. For retail investors, the key is to watch contract conversion and funding discipline. If those hold, the current premium can be justified.