If SPX 6620 gives way, there's no support until 6600 -- and even that is mighty thin Robert P. Balan 10 Oct 2025
SPX Sits Below Massive Positive Gamma Resistance Wall at 6620-6640; line of least resistance is very soft support below 6600 all the way to 6545
Update (0DTE) No. 1 : If you are long SPX, exit trades ASAP (ideal=6755) -- ocean of negative Gamma morphed into lake of positive Gamma