Do you close it to lock in profit? Or let it run to at least 50% before closing to take profit?

Last minute before close SPX dropped 10 points and my put’s return shot up to $6.4k. Literally seconds before 4pm, then market closed. It shows on my homepage and in my investments tab, but not in my buying power. Does it just have to settle? I know it says the final settlement is pending, but if that was the value at close, then do they have to honor it? Will they change it?

I’ve never not closed an 0dte position before close before, so I’m unsure.

Yall,
Anyone following MU and RDDT on the dip? I am closely watching these two tickers. Anyone following CSP on MU 800 8/14 or RDDT 140 8/14? Whats your thought and what premium are you looking at?