Walgreens (NYSE:WAG) had June sales of $6.04 billion, up 6.8% year-over-year. Total front-end sales increased 6.4% in June, while comparable store front-end sales rose 4.7%. Customer traffic in comparable stores increased 1.3% and basket size rose 3.4%.Walgreen has a potential upside of 11.3% based on a current price of $42.73 and an average consensus analyst price target of $47.56.Walgreen is currently above its 200-day moving average (MA) of $39.53 and should find resistance at its 50-day MA of $43.36.