When place LR(linear regression)=126 today over the 4 hour chart (or start it on Jan 3, 2012) you will see the most price deviation from LR is near $10 above or below. Today it was around $7 below LR, but very briefly. No real trading here, but the house is holding it right @ near the 20 MA line on the same chart. The longer they keep it there the more shorts they will collect.
IMO, the down price move > $10 below it's LR + market selloff will trigger red button