Heatmap layout mirrors the Performance Overview Analyst Summary chart (4×4 cells, red bottom-left to green top-right). Each dot is one industry group's median across its companies for the period above, aligned to the page's selected fiscal quarter. X = net margin (net income / revenue). Y = year-over-year revenue growth (this quarter vs. same quarter last year). All dots are the same size; the selected industry is highlighted in blue with a dashed ring and label, every other industry renders gray. Hover any dot to see its industry name, sector, company count, and exact coordinates.

Banks are excluded from this v1 chart because banks rarely tag the generic us-gaap:Revenues concept, so the KPI engine resolves "revenue" to a much smaller line item and the resulting net-margin figures are not comparable to other industries. Bank-specific revenue resolution is tracked in dev/ToDo.md.