Just saw this & thought of you bro. 'true merit is like a river the deeper it is the less noise it makes.' Reality is never ones own make belief. I rest my case using my chicken IQ Mr intelligent Media man. Btw the DJIA whose divisor you are so much trying to emulate as you state started as a simple arithmetic average as you did but has undergone adjustments & some have been towards making coninuity simple thus making a base period important. To some of us we'd love to know the day you picked your prices coz it will assist us in knowing when the divisor changes & not always the index as one affects the other & thus you might at times show a rise on the index when truthfully it might be a decline due to non-adjustment of your divisor. First start by making the divisor public coz others do that including DJIA.
'They say money cannot buy me happiness but when i compare when i had none and now, i'm happier' Kevin O'leary