EBITDAF margin reached 31.2%, above Contact's historical range

Profit before tax rose 27.2% to $589m and net profit after tax rose 26.9% to $420m, both stronger than the revenue trend alone would suggest. Operating cash flow rose to $793m from $544m, lifting cash conversion to 78.4% from 70.3%, and net debt/EBITDA improved to 2.26x from 2.50x.

These totals are not strictly like-for-like: the current and prior periods both carry a portfolio-changing transaction event, which affects the scale of revenue, assets, and financing lines and should temper any clean year-on-year read.

Capital raise adds balance-sheet context, with NZ$10m capital raised, but borrowings and gearing are the direct leverage evidence.

The 31.2% EBITDAF margin sits 7.7 percentage points above the three-period mean of 23.5%, the strongest print in the supplied baseline. For a gentailer, this matters because margin at this level is unusually dependent on generation mix and hydrology conditions in the period, so the question for investors is how much of the uplift is structural operating leverage versus a favourable generation year that may not repeat.

PBT is the cleaner growth signal. PBT growth of 27.2% and NPAT growth of 26.9% moved almost in lockstep, with the effective tax rate steady at 28.2% versus 28.5% prior, so there is no material tax distortion between the two profit lines. Within the segment mix, the retail segment's operating loss narrowed to $16m from $85m while the wholesale segment result rose to $1.1b from $895m, indicating the earnings improvement is concentrated in wholesale generation economics rather than an improving retail margin.

Leverage improved but the balance sheet changed scale. Net debt/EBITDA fell to 2.26x from 2.50x, which supports financial flexibility, but total assets and equity also expanded materially over the period. This means the leverage improvement should be read alongside the balance-sheet scale change rather than treated purely as organic debt paydown.

The first half contributed roughly half of full-year revenue, EBITDAF, and NPAT (around 49.9%, 49.5%, and 48.6% respectively), indicating a fairly even split rather than unusual seasonal skew. Dividend guidance points to 42 cents per share for the following year against a full-year dividend of 40 cents in the current period, up from 39 cents prior, a modest step that does not by itself validate the margin strength as repeatable.

Free cash flow of $648m against NPAT of $420m implies FCF/NPAT conversion of 154.3%, aided by the phasing of capital spending, which rose to $520m from $449m as growth investment continued. Working-capital movement between periods appears materially different from prior years, but given the same-period scale change noted above, this is better read as a balance-sheet composition effect than a clean signal of receivables or payables deterioration, and should not be treated as a trend without further disclosure.

This briefing cannot assess the specific quantitative contribution of the period's capital-structure transaction to reported cash flow or leverage, as that attribution was not reconciled in the disclosed source material.