Normal drop in morning to 9:45 then pivot to a rise, followed by a continued drop. Historical low of the day comes in at 11:00 AM followed by a rise. Look for a brutal chop zone during lunch hours from 12:15 to 1:35, followed by a slow steady rise to close.
Parabolic close high likely in last five minute interval.
This was calculated by looking at the last 12 months of Fridays that fell on Options Expiry. A flat average of Open, High, Low, Close was used, then a moving weighted average for the last three Fridays.