How do the movements of the crypto markets (after stock market closes) affect the openings of the upcoming day?

I planned on dedicating about 20 hours this weekend to combing through hundreds of days of data to see what/if there was any correlation between how crypto behaved after-hours and how stock markets opened the next morning.

Has anyone on here down any research into this, or should I conduct it myself this weekend and post my findings? Google was largely unhelpful because no matter what I search, my search query has too many red-hot SEO terms in it and nothing meaningful comes up.