In Adam Carr's October 29 article “Ride the fiscal cliff wave”, he refers to “net long positions of Traders”. He in fact bases much of the article on this term and I do not understand what he is referring to. My understanding is that in trading someone always buys and someone sells so the net is always zero. I therefore have to assume that Adam is talking about a subset of traders in this article, perhaps small traders? Is this correct? If not then can you please elaborate on exactly how a net position of traders is calculated?