Spark New Zealand Limited

The Business

Spark is New Zealand's largest telecommunications operator, holding roughly 39% of mobile service revenue in a market with only three national networks. Mobile accounts for around 41% of group revenue, fixed-line and legacy voice/broadband a further 29%, with the remainder split across cloud/IT services and product procurement. The business owns the country's largest sub-1GHz spectrum holdings, the low-frequency airwaves that carry signal furthest and cheapest, underpinning its long-standing lead in network coverage rankings. A recent data centre divestment (Spark retained a 25% stake) freed capital and simplified the portfolio toward core connectivity.

Recent Performance

Group revenue was flat in FY26 (down 0.1% to NZ$3,666 million), with underlying EBITDA of NZ$1,035 million. The share price has been range-bound, still digesting a prior dividend cut from 25 NZ cents to 16 NZ cents per share as management reset the payout to a sustainable level. That reset removed near-term downside risk to the dividend but also removed the yield-compression re-rating story, leaving the stock trading largely in line with its cash flow rather than ahead of it.

Outlook

Revenue growth is forecast to build gradually over the next several years, as consumer mobile pricing gains offset continued decline in legacy voice and broadband. EBITDA margin is expected to widen modestly as a cost program (headcount already down 530 roles, 13.8%, in FY26) offsets ongoing legacy revenue erosion. Earnings per share growth in the outer forecast years looks attractive in isolation, but it is recovering off a depressed near-term base, not compounding off strength.

Key Risks

Unfranked NZD dividends carry a structural yield penalty for Australian holders versus a fully franked peer such as Telstra, a permanent feature of owning this stock on the ASX rather than the NZX. Mobile ARPU (average revenue per user) growth, the sole organic growth engine, is the largest single swing factor in the thesis: a stall to zero would remove the only source of underlying revenue growth in the model. Dividend coverage from free cash flow is tight, currently below 1.0 times on a normalised basis, leaving no buffer for a shortfall without further adjustment to the payout.

What to Watch

The thesis-defining event is the Digital Services strategic review outcome, expected around December 2026, which will confirm whether management can extract further capital from the portfolio simplification already underway.

• H1 FY27 (~Dec 2026) Digital Services review outcome — a sale on favourable terms could release meaningful capital for redeployment or return to shareholders.
• 12-18 months RBNZ rate cuts — a lower New Zealand cost of capital would improve the economics underlying the business, though the practical effect for ASX holders is partly offset by currency considerations.

Company Description

Spark operates as an integrated mobile and fixed-line telecommunications provider across New Zealand. Mobile services, the largest division at roughly 41% of revenue, span consumer and enterprise plans, device financing and prepaid. Fixed and legacy services, around 29% of revenue, include broadband, copper voice and other connectivity, all in structural decline as customers migrate to mobile and fibre alternatives. Digital and cloud services contribute roughly 9%, following the recent divestment of the majority of the data centre business, in which Spark retained a 25% equity stake. The remainder comes from equipment procurement and other services tied to device sales.

Where the Growth Is

Consumer mobile average revenue per user is the only meaningful organic growth lever, up 3.6% for three consecutive reporting periods as customers upgrade to higher data tiers, with underlying data consumption growing around 30% annually. This single driver supports essentially the entire group revenue forecast; if it stalls, group revenue growth falls toward zero, since every other segment is flat to declining.

Competitive Position

Spark holds the largest sub-1GHz spectrum portfolio in New Zealand and has ranked first in independent network coverage and quality testing for six consecutive periods. The mobile market is a stable three-player oligopoly, and Spark's share of mobile revenue, around 39%, has been losing ground more slowly than in prior years (down 0.5 percentage points versus 1.8 points the year before). Barriers to entry are high: spectrum is scarce and regulated, and building a comparable network would require multi-billion-dollar investment. The main competitive threat is One NZ, backed by well-capitalised private equity owners with the balance sheet to fund an aggressive pricing push if it chose to.

Management & Capital Discipline

Management cut the dividend from 25 to 16 NZ cents per share, a difficult but necessary reset given deteriorating free cash flow coverage, and executed the data centre sale at terms that preserved upside through the retained stake. A cost program has delivered NZ$101 million of a targeted NZ$150-180 million, backed by a genuine 13.8% headcount reduction rather than one-off cuts. One honest observation: management's stated ambition of lifting return on invested capital to 11-13% by 2030 is not supported by any visible revenue catalyst, and our own modelling settles closer to the current level of around 8%.

Financial Position

Net debt sits at 1.7 times EBITDA, within Spark's own target range and consistent with its investment-grade credit rating, backed by a NZ$500 million undrawn credit facility. This level of leverage would allow earnings to fall by roughly 47% before covenant pressure became a concern, a substantial buffer for a business with recurring subscription revenue. The balance sheet is well positioned to absorb a downturn without threatening the dividend's sustainability at current levels.