Powder demand held the dairy price floor when supply surged

The result that matters more than the number

The headline figure from the Global Dairy Trade auction on 2 September was almost flat, up just under 0.1% to US$3910 (NZ$6639) per tonne. On its own, that reads as a non-event. In context, it is the story.

This is the time of year when Southern Hemisphere supply ramps up and prices typically come under pressure. That the market held, following a 2.3% rise on 19 August to US$3873, gives exporters two consecutive positive results after a sharp mid-year correction. NZX head of dairy insights Cristina Alvarado called it a “more resilient result than the increase in seasonal supply might have suggested”.

Protein did the heavy lifting

The stability was not evenly spread. It was carried almost entirely by demand for milk powders, which is exactly what New Zealand’s export book is built around.

Skim milk powder was the standout, rising 5.3% to a new 12-month high even as volumes climbed almost 10%. Absorbing that much extra supply without a price fall is a genuinely strong signal. Whole milk powder, the product that most directly sets the farmgate price, slipped just 0.1% to US$3585 despite Fonterra lifting its WMP offering by almost 8%. Alvarado noted that additional supply was absorbed “relatively comfortably rather than creating significant downward pressure”.

The weak spots sat where New Zealand is less exposed. Butter fell 0.8%, and cheddar was the “clear weak point”, down 6.6% to US$3503, its lowest on the GDT platform in five years. Alvarado’s summary was blunt: “Protein demand is providing price support despite higher powder availability, while fats remain under pressure and cheese faces a much heavier supply burden.”

For a country whose exports are weighted toward WMP and SMP, that split is close to the ideal outcome. Exporters heavy in cheddar are the ones staring at a five-year low.

A demand floor with a use-by date

Part of the reason buyers kept turning up is timing. Alvarado noted buying activity held “despite the normal increase in volumes offered” because deliveries are moving into the stockpiling window ahead of Christmas, Chinese New Year and Ramadan. That seasonal floor is real, but it will not sit under the market indefinitely.

The bigger swing factor is Northern Hemisphere weather. NZX analyst Rosalind Crickett warned at the August auction that “record high temperatures in the Northern Hemisphere paired with potentially the strongest El Nino weather on record for the Southern Hemisphere” could reshape the supply side. Alvarado echoed that, saying “the resilience of powders will remain important as Northern Hemisphere milk production responds to the effects of recent heatwaves and drought”. If supply tightens materially, powders get further support. If not, demand has to keep carrying the weight.

The farmgate margin is holding, not widening

The mid-year correction was ugly. Fonterra opened the 2026/27 season with a $9.75/kgMS forecast in May 2026, then cut it to $9.25 in July after reference prices dropped about 11% and three consecutive auction declines including a near-5% slump. September does not restore the $9.75, but it suggests the floor is set.

At $9.25, there is still margin. DairyNZ’s March 2026 Economic Tracker put the breakeven milk price at $8.36/kgMS, with total expenses of $9.09/kgMS. But the gap is narrowing. In May 2026, Alvarado warned that “PKE prices have continued strengthening since April, while imported fertiliser prices have also continued moving higher”, and a weak dollar makes every imported input more expensive.

Structurally, the backdrop is supportive. Rabobank forecast output from the big seven exporters to end 2026 only 0.2% above the prior year, down from 2.6% growth in 2025, a tightening that props up prices, though the bank’s Emma Higgins cautioned the recovery was “not structurally stable”.

The best-case scenario, for now

New Zealand is producing more milk than ever, with DairyNZ’s February 2026 report forecasting a record 1.96 billion kgMS and $27.4 billion in dairy export revenue for the year to June. More supply into a stable-to-firm price environment is the outcome the sector wants. The September auction says that scenario is holding. The open question is whether powder demand can keep absorbing every extra tonne once the festive stockpiling window closes.

Sources

• RNZ: Global dairy prices holding steady, despite increase in seasonal supply (2026-09-02)
• 1News: Dairy prices rally at latest global auction amid threat of El Nino disruption (2026-08-19)
• RNZ: Floor set for milk prices (2026-07-22)
• Newswire: Global dairy prices rise for the first time in a month as auction lifts 1.5 percent (2026-07-24)
• Farmers Weekly: Protein demand keeps dairy markets firm despite global uncertainty (2026-05-20)
• NZX: Fonterra announces Q3 result and F27 Farmgate Milk Price (2026-05-28)
• Rabobank: Cautious dairy commodity price recovery amid heavy global supply (2026-03-10)
• DairyNZ: Economic Tracker Quarterly Update March 2026 (2026-03-10)
• DairyNZ: State of the Dairy Nation Pulse Report February 2026 (2026-02)