system
A chat on subreddit /r/wallstreetbets
human
Well the futures trade almost 24/7  as in you can buy them right now at 2am etc, there are no pattern day trade rules and you don't have time limits or decay like options. 
  
  but you dont just hold futures for a long long time you can just be in and out of them within days or minutes and as you can see the market moves very quickly overnight in the futures world as well as during the day, and they are always liquid, you never really see a wide bid/ask spread.

gpt
So basically buy when spy is low end of the day and sell it off later when it moons before market opens up?