It's a tale of two types of milk after the A2 milk company announced record half year results, while the GlobalDairyTrade auction dropped 2.8 percent.
Sales of its infant formula brand A2 Platinum across China, Australia and New Zealand have doubled while overall half year profit has gone from $100,000 to $10 million.
A2 shares soared 25 percent on the New Zealand stock exchange after it opened Wednesday morning.
The company produces milk which contains the A2 protein and screens out the A1 protein found in regular milk.
Some research shows that regular A1 milk can be hard for some people to digest.
Last December the New Zealand Government awarded the company a $1.1 million research grant in partnership with AgResearch and The University of Auckland to validate the digestive benefits of A2 beta casein protein.