There is no volume at all in the housing futures contracts. I trade more contracts every day in my own accounts by far than the total amount traded there. Do not bother with that until volume increases dramatically.
The only way that will happen is the homebuilders shorting them. I have a feeling they do not want to do it publicly for fear of inciting fear into the market. It does not matter anyway because there would be nobody to take the other side to enable them to get a fill on any large enough size to help them hedge.
