Milkfat Is Winning the Dairy Glut: Why Butter Is Firm and Milk Powder Is Crashing for Arla, Fonterra and Lactalis

The world is drowning in milk. Yet butter keeps getting more expensive. That gap is the most important story in dairy right now, and most of the industry is reading it wrong.

The wall of milk is real

Farmers in the US, the EU, New Zealand and South America are all milking more cows. Late in 2025, global milk output grew about 5.5% from a year earlier. The long-run average is closer to 1.4%. That is a flood, not a trickle.

Normally a flood of milk crushes every price. In the US it did exactly that. The all-milk price fell below $20 per hundredweight by late 2025, more than 20% lower than a year before. Many farmers are now selling milk for less than it costs to make.

But the glut split in two

Here is the twist: the surplus is not spread evenly. Milk has two main parts that sell on their own markets. One is fat, which becomes butter, cream and anhydrous milk fat. The other is protein, which is dried into powders like skim milk powder.

Right now those two halves are moving in opposite directions. At the Global Dairy Trade auction on 2 June 2026, butter rose 1.2% to $5,734 a tonne and anhydrous milk fat jumped 5.3% to $6,668 a tonne. In the same sale, skim milk powder fell 3.0% to $3,457 a tonne. In Europe the gap is even wider: butter is up about 14% on the year, while skim milk powder is down roughly 46%. Fat is scarce. Protein is drowning.

Why fat is winning

The reason is demand, not supply. Shoppers gave up on the low-fat rule years ago. They want real butter, full-fat dairy, cream and cheese. That pulls milk solids toward fat products and leaves less skim behind. The thing everyone was told to fear, fat, is now the part that pays.

Cheese tells the same story. Cheddar edged up 1.8% to $4,621 a tonne at the same June auction, because cheese is fat-rich and rides the same demand wave. The US has tipped so far that analysts at CoBank describe its dairy system as short on protein and long on butterfat. Europe shows the mirror image in its powder stockpiles. Either way the message is the same: the easy money is in fat.

The problem for big dairy

This is awkward, because the big processors spent the last decade chasing protein. Arla, FrieslandCampina, Fonterra, Danone and Lactalis all built their growth story on protein. High-protein yogurt, whey for sports drinks, and milk powders for infant formula were supposed to be the premium future. Plain butter and cream were the boring base.

Now the boring base is the profit. Companies that can swing more milk into butter, cream and cheese are catching the better price. Pure powder exporters, especially those leaning on skim, are stuck on the wrong side of the split. A plant built to dry skim cannot turn into a butter churn overnight.

What happens next

None of this lasts forever. Low farmgate prices will eventually slow the cows, and the protein powders will find a floor. But the lesson for operators and investors is bigger than one auction. A glut is not one price falling. It is a sorting machine that decides which part of the cow gets paid. For now it is paying fat.

For anyone buying a dairy asset this year, the question is no longer just how much milk it handles. It is how much fat it can capture, and how fast it can shift the mix when the market turns again. The companies that can move milk solids toward the scarce half will protect their margins. The ones locked into commodity powder will keep explaining a price they cannot control.