Zero correlation from after hrs initially . Many many times if futures down big by even 10 pm they reverse and are either barely down or green by rth. Correlation to opening is much much higher when futures strong green in early after mkt that they stay green till the rth.
Thanks, very helpful re correlation insights. I'll likely start keeping track of what happens in premkt following futs moving 200 or more points green/red night before by 7pm