I am new to quantopian and still learning. I am looking at some different techniques with pairs.
Are there any filters for finding pair candidates?
I wrote something that compares every stock to every other stick, but that seems wasteful. This must be a common operation. I know finding a true pair is not trivial but I think we could weed out a lot of obvious none pairs. A filter that gave us all cointegrated stocks would be a good starting place.