GABE TerminalChain

Net gamma exposure heatmap by strike and expiry

GEX Heatmap

Tickers
Cell fill
sign & magnitude of net GEX at that strike × expiry — red negative, green positive · log₁₀ of |net GEX| · normalised globally — one scale for the whole grid
no contract quotedquoted, nets to zero
Anchor levels▲ +GEXyellow, solid rule across the row — max positive-GEX strike▼ −GEXpurple, dashed rule across the row — max negative-GEX strikeflip / spottealAnchor markers use their own hues and line styles so they never merge into the green/red field they sit on. They sit on top of the cell — the fill and its number are unchanged.
Tenor anchors (per expiry)These are not the desk's ±GEX levels: they are per-tenor anchors, drawn as a neutral white outline inside a single cell — deliberately colourless, and subordinate to the full-width yellow/purple grid-wide markers. Nothing on the desk builds targets off them. A column with only one sign gets only the anchor it has. Materiality: a column is marked only when its gross gamma (Σ|net| in-window) is ≥ 5% of the fattest column's. Columns below it are captioned thin N% with their actual share and carry no markers — suppressed, and said so.
Strike window