The devil is in the details when analyzing a base. LGI Homes (LGIH), a member of Monday’s Sector Leaders screen, has been consolidating gains above its 10-week moving average after a powerful breakout in August. At first glance, it appears to be carving a flat base. The base is long enough, just over five weeks, but the correction from the high in the base (33.87) to the low in the base (27.38) is 19%.