Note on Portf II. WDC is the newest addition being added the week of 07/13/2018. If not a lot of Frequency of range, there's certainly plenty of Amplitude with which AIM can work: stockcharts.com/c-sc/sc?s=WDC&p=W&b=5&g=0&i=p41116081318&r=1531570489335 It appears it's going to need deep cash reserves at times.