P/B Ratio History Chart

How to Read P/B Ratio History

The price-to-book ratio compares a company's market capitalization to its shareholders' equity — the accounting value of assets after all liabilities are subtracted. For a value investor, it is one of the oldest anchors in the toolkit: Benjamin Graham used book value as a floor, and the Graham number is built on it. A P/B below 1 means the market is valuing the company below what accountants say it is worth on paper.

A stock's current P/B tells you today's implied premium or discount to book. Its 7-year history tells you whether the market is paying a premium or a discount relative to what it has historically demanded for the same business. Trading well below the 7-year average often signals a buying opportunity; trading near the 7-year high warrants scrutiny of whether the return on equity justifies the premium. Use the P/B ratio screener to identify other stocks in the same value tier.

One key caveat: book value is an accounting construct, not an economic one. Asset-heavy industries (banks, manufacturers, utilities) carry most of their value on the balance sheet and tend to trade at lower P/B multiples. Asset-light businesses (software, consulting, consumer brands) generate returns on capital that dwarf their book value, so high P/B ratios are structurally normal for them. Always compare a stock's P/B history to its own history first, then to sector peers.

The orange dashed line shows the sector ETF's current P/B as a market-context anchor. If the stock trades at a significant discount to its own history and to its sector, the asymmetry is worth investigating further with a full DCF model or P/E historical chart.