Basically, GBP is extremely shorted. that is why it has been moving up. NZD is about 51% bought by non-commercials. This is why it is moving up. The Japanese Yen is 76% extremely overbought, and that is why the YEN is falling. That's it....but there is more. Check out my links about for free.
Just go here. Here is the link: http://www.cftc.gov/MarketReports/CommitmentsofTraders/index.htm It updates every wee FREE. Also, you can just get any book on Amazon.com that talks about the COT and how to use it: https://www.amazon.com/Commitments-Traders-Bible-Insider-Intelligence/dp/0470178426/ref=sr_1_4?ie=UTF8&qid=1473812294&sr=8-4&keywords=cot+analysis