(Part 2): Why September Explodes: The Second-Order Greeks That Control SPX Robert P. Balan 11 Aug 2025 — 6 min read
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