It probably won't result in a change of government so maybe it won't impact the kiwi?
Just kidding, it's the GlobalDairyTrade (they spell it without spaces) auction.
Previously:
Dunno about anyone else, but I find that not an easy graph to read. Anyway, the most recent result was -1% for the GDT Price Index
NZX Dairy Derivatives market is showing pricing for a drop again at this auction.