I'm just learning options strategies, but if you sell a put, and the market is close to the strike price, you might want to short the stock to cover the put. This would be especially true early on expiration day when it looks like we might fall off a cliff. If it then doesn't get assigned, you'll have to then buy the stock back. If this is what's happening, Monday should be flat or up.

Of course, if Monday is down significantly, then something else is happening, and it can't be good.

As for today, market internals have weakened, but are still positive. Just holding the PMs for now (most of my PMs are platinum, palladium & silver) and using today's weakness to dip my toe in the alt energy stocks - SPWRA, YGE, & ESLR.

If the market internals go negative on Monday, I'll put some duct tape on my crystal ball and start selling.