https://truegex.com/blog Dealer gamma, vanna, 0DTE and options flow, explained for traders. en-us Fri, 30 Oct 2026 01:28:17 GMT https://truegex.com/blog/what-is-gex-in-options https://truegex.com/blog/what-is-gex-in-options Fri, 30 Oct 2026 01:28:52 GMT Learn how gamma exposure relates to dealer hedging, what positive and negative gamma may imply, and how to read GEX heatmap nodes without treating them as predictions. GEX & Dealer Gamma