How to read a stock heat map: colors, ranks, and percentiles

A stock heat map is not a mood board. Each cell should help you compare a metric against peers in the same sector or industry — then decide whether the name deserves deeper work.

Buydy pairs raw values with percentile ranks so you can see both the number and its relative context. When data is insufficient, cells stay blank. That is intentional: missing data is information, not a bug.

Start with the peer group, not the ticker

Before reading color, confirm which peer group applies. A dividend yield that looks high in isolation may be ordinary for Utilities and unusual for Technology.

In Buydy, percentile context is computed within sector and industry groups. Greener cells generally mean stronger relative standing for that metric within the peer set — not an automatic buy signal.

Read percentiles before raw values

Raw metrics answer "what is the number?" Percentiles answer "how unusual is it for this group?"

Use this order:

1. Scan for cells that stand out within a row or column.
2. Check the raw value to confirm the signal is material, not a rounding artifact.
3. Open company detail to verify source data and freshness.

If a cell is blank, treat it as insufficient source data — not a weak score. Buydy does not invent fallback values when history or fundamentals are too thin.

Convert color into a shortlist

After scanning, write down three to five names that deserve the next hour of research. For each, note:

• Which metric drove attention
• Whether the percentile and raw value agree
• What would falsify the thesis

This is where a stock heat map landing page connects to daily workflow: scan broadly, narrow deliberately, inspect evidence before any portfolio decision.

Pair heat maps with screening and indexes

Heat maps compare; screeners filter. Most repeatable workflows use both — plus macro context from global index monitoring.

For a side-by-side view of discovery tools, read stock heat map vs stock screener. When you are ready to work inside Buydy, see pricing or browse resources for product links.

Make the review weekly

Daily noise fades; weekly cadence compounds. Return to the same universe, same metric set, and same review order. Note what changed in percentile ranks — that delta often matters more than a single static snapshot.

Research summaries, not investment advice.