Return of pot stocks? ERBB ATTBF stockcharts.com/c-sc/sc?s=erbb&p=D&mn=6&dy=0&i=p21944756195&a=119380913&r=4076 stockcharts.com/c-sc/sc?s=attbf&p=D&mn=6&dy=0&i=p21944756195&a=119380913&r=4076