The 3025 strike in Nov 1 Weeklies got a lot of interest by SPX options traders. The red line represents the volatility of gamma (normalized) superimposed upon “Bollinger Bands” for gamma vol!
You see some early selling …that covers during lunch. At 13:50, large shorts enter the market when gamma volatility is peaking. At 14:50, the covering of those shorts occurs …again, transaction volume peaking at nearly the most opportune time.