I'd say short the blasted things, but they have earnings next week and a slew of housing numbers coming out, as well.

And that is simply too risky to be taking a short position on. 

If you are associated with the home building process in any way, except for the being the bank itself, your stock is dropping today. Everything from Homebuilders to Home Improvement is getting crushed. 

These are the stocks that are breaking down, or right at the cusp of breaking down and through key support levels. 

Check them out:

Residential Construction Industry:

Lennar (LEN)

KB Homes (KBH)

Toll Brothers (TOL)

Pulte Homes (PHM)

D.R. Horton (DHI)