How do I access SpotGamma Vanna Charts? Subscribers can access SpotGamma's Vanna Charts here. Related articles When do the Vanna Chart levels update? What are Vanna Charts? Is negative call gamma bullish? Do the NDX PX and NQ PX values also incorporate the QQQ gamma into the levels? Or is it just based on NDX gamma? How does Next Exp Delta & Gamma effect the price going into that expiration and on Monday?