I pulled this screenshot from https://www.msn.com/en-us/money/markets
It seems the Plunge Protection Team has been working overtime this week. The markets keep dropping, then will stop the drop, only to resume it again.
There were a number of weird spikes just today.
It could be a rough time to be in the market very soon.
Meanwhile, silver and gold both jumped 1.6% today! Prices are still low though, so get it while you can.
This is not investment advice. Do your own research. This is for educational/entertainment purposes only.