The price-to-book ratio compares market value to accounting book value (assets minus liabilities). It is the classic value-investing yardstick — most informative for asset-heavy sectors like banks, insurers, and industrials, and less meaningful for intangible-driven businesses like software.
Greener tiles trade closer to or below book value, redder tiles at larger premiums. Negative or meaningless book values appear gray.
The market values the company below its accounting net assets — potentially a bargain, or a warning that those assets (loans, inventory, goodwill) are worth less than the balance sheet claims.
Banks' balance sheets mark most assets near market value, so book value is meaningful. A bank at 0.8× book is cheap if its loan book is sound — the same ratio is nearly useless for an asset-light software firm.
Yes — buybacks can shrink or negate book value, and intangibles (brands, IP) never appear on the balance sheet. Cross-check with ROE: high-ROE companies deserve premium P/B.
Heatmap data updates through the trading session. Fundamentals come from Finnhub and SEC filings; scores are simplified heuristics for screening — not investment advice.