Better PRTK Chart 10 Day http://stockcharts.com/c-sc/sc?s=PRTK&p=D&yr=0&mn=0&dy=10&i=t59067471012&r=1467245045068 1 Month http://stockcharts.com/c-sc/sc?s=PRTK&p=D&yr=0&mn=1&dy=0&i=t85050808908&r=1467245082538 3 Month http://stockcharts.com/c-sc/sc?s=PRTK&p=D&yr=0&mn=3&dy=0&i=t38752427914&r=1467245116333 6 Month http://stockcharts.com/c-sc/sc?s=PRTK&p=D&yr=0&mn=6&dy=0&i=t29422300675&r=1467245083217