Retail sector leader Ulta Beauty (ULTA) ended pennies below a 159.95 buy point in a flat base Thursday, after trimming a 2% gain to less than 1%. The stock has struggled in a flat range alongside the general market since March. Shares have been finding support around the 50-day moving average since May, which is an encouraging sign. The relative strength line hit a new high right before the breakout, which was another good sign.