Outwith Dec 2015, Shorts on BFX have never been so low in over a year.

Longs are also relatively low, but you would have to go all the way back to March 2015 to find a period where long positions on BFX were comfortably lower than they currently are.

But probs we need to be looking at CNY markets to get a better picture of this, as it is China that is driving BTC at the time being.