While the stock didn't give up much ground during this streak, it is beginning to fall below a very heavy moving-average cluster. Just above Friday's high, a great deal of downside pressure is beginning build. Lockheed's declining 50-day moving average will cross below the 200-day early next week. In all, there are four moving averages (13- and 30-day included) that are converging overhead near the $191 area.
A close at fresh June lows early this week would be a clear warning sign. If selling pressure picks up during a break of $188, Lockheed Martin could be headed for fresh 2015 lows. The stock has a very solid support zone in place near the $186 area, but the overhead pressure now building above the late highs of last week could overpower the February/April lows.