NextDC Halts Trading Over M3 Power Delay, FY27 at Risk

NextDC shares are halted while the ASX 200 data-centre operator updates the market on a power delay at its 225MW M3 Melbourne site and FY27 guidance risk.

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What Happened to NextDC Shares?

NextDC shares were suspended under ASX Listing Rule 17.1 and will stay frozen until the company makes an announcement or normal trading starts on Wednesday 21 October. The company expects to update the market within days.

The stock last closed at about A$9.18, down roughly 26% year to date and about 16% over the past month. That makes it one of the weaker performers among the large technology and infrastructure names in the market index ASX 200 this year. A halt ahead of a guidance-related disclosure typically signals that the news is material to earnings.

Why Does the M3 Power Delay Matter for FY27 Guidance?

The delay matters because the timing of M3's energisation was built into FY27 underlying EBITDA guidance of A$385 million to A$410 million. The electricity distributor Jemena has paused work on the lines that would deliver power to the site, which is outside NextDC's direct control.

Data-centre economics depend on timing. An operator spends most of the capital up front to build a facility. It only begins billing once the site is powered, commissioned and customers are switched on. A grid delay therefore pushes revenue back while construction and financing costs continue.

Market estimates put M3 at about 70MW of the roughly 155MW of incremental billing capacity expected in Victoria in FY27, or about 45% of the state total. Those estimates put the earnings at risk at about A$25 million, roughly 6% of the guidance midpoint, if billing starts later than planned. The actual impact will depend on the length of the delay and any customer contract terms tied to delivery dates.

Strategic Context

M3 is central to NextDC's pitch to hyperscale and AI tenants, who need large blocks of power at short notice. Grid connection has become the main constraint on data-centre expansion in several markets, and Melbourne is no exception. The setback shows that securing land and customer commitments does not guarantee delivery if network upgrades slip.

Local groups have also raised concerns about the site's proximity to residential areas and called for compensation. That adds a community-relations dimension to the project.

What Comes Next for NextDC?

The next step is the company's market announcement, which is expected before trading resumes on Wednesday. Investors will look for three things: a revised energisation timetable, whether FY27 EBITDA guidance is cut or only re-phased, and any change to capital expenditure plans.

The size of the guidance revision, if any, will set the tone for the reopening. The stock is already well below its levels earlier this year, and an announcement that only shifts timing would carry different implications from a downgrade.

Outlook

NextDC's halt turns a grid-connection delay at M3 Melbourne into a test of its FY27 earnings outlook. Roughly A$25 million of EBITDA is exposed against guidance of A$385 million to A$410 million. The company's update, due within days, will show whether the delay is a timing issue or a lasting setback to its Victorian expansion.