The future price of whole milk powder (WMP) has surged in the last 10 days as markets react to the spike in prices at last week’s GDT result in New Zealand. Since last Tuesday’s GDT auction, December, January and February future contracts for WMP have increased in value by 11%, and are up almost 18% in the last fortnight.The sharp increase in the WMP futures market reflects the recent price gains for milk powders on the GDT but it’s also a reaction to a tightening global supply of whole milk powder in particular.