Following option activity as an indicator for price moves can be subjective BUT it can increase the probability of a profitable trade! Big buys in calls or puts especially block trades usually means someones knows something. This blog keeps track of the big options trades and the underlying stock movement.
Call options on the Jan $4's were high on volume yesterday. Could be a bullish bet on some insiders. A block of 1,126 -- have changed hands on this option. Check OI on Monday to see if the volume was open buys.