World dairy prices have shot higher at the latest GlobalDairyTrade auction, with the GDT price index gaining 6.6 per cent since the last auction in mid-July, most likely reflecting concerns about tightening supply.
Whole milk powder prices, which have the biggest bearing on Fonterra's farmgate milk price, shot up by 9.9 per cent to US$2265 a tonne.
That price, while still well short of the US$3000 a tonne required to put loss-making farmers back in the black, will nevertheless act as a confidence booster for the sector.
Prices have generally been low but steady over the previous three auctions.
"Tonight's move will undoubtedly be predicated on the concern around slowing supply growth," Mike McIntyre, director of derivatives at First NZ Capital said.
"While the globally traded market remains out of balance if current trends continue, then equilibrium should be restored at the back end of the current year and so buyers locking away some of their purchases at what are still historically low prices is a prudent move," he said.