Selling Some PEP

Pepsico (PEP) is trading within 62-68 range for the last 12 months. Last 6 months range is even narrower, mostly between 64 and 66. Today stock went over 66, so discipline tells me to sell some. I will sell more over 68, and buy back below 64 and 62. Current market is not clear, it might easily go either way, but range trading works in every market. That is, while stock is in range.