IoneerIONR -2.39%37 PB Ratio is 1.18 as of Jun. 24, 2026. GuruFocus rates IONR with a GF Score™ of 37/100. The stock has 1 warning sign investors should review. Among 2,359 Metals & Mining companies, Ioneer ranks better than 74.48% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-06-24), Ioneer's share price is $4.09. Ioneer's Book Value per Share for the quarter that ended in Dec. 2025 was $3.45. Hence, Ioneer's PB Ratio of today is 1.18.
The historical rank and industry rank for Ioneer's PB Ratio or its related term are showing as below:
IONR'
s PB Ratio Range Over the Past 10 Years
Min: 0 Med: 0 Max: 1.16
Current: 1.13
During the past 13 years, Ioneer's highest PB Ratio was 1.16. The lowest was 0.00. And the median was 0.00.
IONR's PB Ratio is ranked better than 74.48% of 2359
companies
in the Metals & Mining industry
Industry Median: 2.32
vs IONR: 1.13
During the past 12 months, Ioneer's average Book Value Per Share Growth Rate was -10.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -0.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 11.80% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Ioneer was 91.30% per year. The lowest was -37.00% per year. And the median was -5.50% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Ioneer PB Ratio Related Terms
Ioneer PB Ratio Historical Data
* Premium members only.
The historical data trend for Ioneer's PB Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Other Industrial Metals & Mining subindustry, Ioneer's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Ioneer PB Ratio vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Ioneer's PB Ratio distribution charts can be found below:
* The bar in red indicates where Ioneer's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Ioneer's PB Ratio for today is calculated as follows:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Ioneer (IONR) has a PB Ratio of 1.18 as of Jun. 24, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ioneer and its competitors. According to the industry distribution chart, Ioneer ranks #602 out of 2359 companies in the Metals & Mining industry, placing it in the top 25.5%.
Is Ioneer's PB Ratio too high?
Ioneer's current PB Ratio is 1.18. The Metals & Mining industry median PB Ratio is 2.32. Ioneer's value of 1.18 is 49.1% below this industry median. Based on the distribution chart, Ioneer ranks #602 out of 2359 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Ioneer has a GF Score™ of 37/100, reflecting its overall financial health beyond just this single metric.
How does Ioneer's PB Ratio compare to competitors?
According to the Metals & Mining industry distribution chart, Ioneer ranks #602 out of 2359 companies for PB Ratio. This puts Ioneer in the upper half of its industry. The industry median PB Ratio is 2.32. Ioneer's value of 1.18 is 49.1% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Metals & Mining company?
The median PB Ratio among Metals & Mining companies is 2.32, based on 2,359 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ioneer's current PB Ratio of 1.18 is 49.1% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Ioneer and its competitors. For the Metals & Mining industry, the median PB Ratio is 2.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ioneer's current PB Ratio is 1.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ioneer stock overvalued right now?
Ioneer (IONR) has a current PB Ratio of 1.18. The current PB Ratio is 1.18 and 49.1% below the Metals & Mining industry median of 2.32. Ioneer's overall GF Score™ is 37/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Ioneer (IONR), the current PB Ratio is 1.18 as of Jun. 24, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Ioneer Ltd is a mineral exploration and development company. The company's focus is on the Rhyolite Ridge Lithium-Boron Project located in Nevada, USA. Geographically, the group has a business presence in Australia and North America. The company's focus is to develop a U.S.-based source of lithium and boron.
37GF Score
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