We are within 16 handles of 782 SPX [based on ES since cash closed.] I will be buying ESZ8 or ESH9 close to there, based on what is likely to be a dynamic momentum situation.
That is monster support. But nothing says we don't go waaaay lower.
Options expiration may complicate things a little. Be patient if you want long. But when it does decide to go, it will be spectacular - probably 30 handles higher in five minutes, and then a monster squeeze.