Black Rock Mining (ASX:BKT) PB Ratio: 0.35 (As of Jun. 26, 2026)


What is Black Rock Mining PB Ratio?

Black Rock Mining ASX:BKT -8.33% PB Ratio is 0.35 as of Jun. 26, 2026. The stock has 1 warning sign investors should review. Among 2,358 Metals & Mining companies, Black Rock Mining ranks better than 95.38% 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 (2026-06-26), Black Rock Mining's share price is A$0.011. Black Rock Mining's Book Value per Share for the quarter that ended in Dec. 2025 was A$0.03. Hence, Black Rock Mining's PB Ratio of today is 0.35.

The historical rank and industry rank for Black Rock Mining's PB Ratio or its related term are showing as below:

ASX:BKT' s PB Ratio Range Over the Past 10 Years
Min: 0   Med: 0   Max: 0.42
Current: 0.36

During the past 13 years, Black Rock Mining's highest PB Ratio was 0.42. The lowest was 0.00. And the median was 0.00.

ASX:BKT's PB Ratio is ranked better than
95.38% of 2358 companies
in the Metals & Mining industry
Industry Median: 2.25 vs ASX:BKT: 0.36

During the past 12 months, Black Rock Mining's average Book Value Per Share Growth Rate was -34.00% per year. During the past 3 years, the average Book Value Per Share Growth Rate was -11.40% per year. During the past 5 years, the average Book Value Per Share Growth Rate was 2.90% per year. During the past 10 years, the average Book Value Per Share Growth Rate was 3.70% per year.

During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Black Rock Mining was 37.90% per year. The lowest was -66.10% per year. And the median was -5.05% per year.

Back to Basics: PB Ratio


Black Rock Mining  (ASX:BKT) PB Ratio Explanation

Unlike valuation ratios relative to the earning power such as PE Ratio, PE Ratio without NRI, PS Ratio, Price-to-Operating-Cash-Flow , or Price-to-Free-Cash-Flow, the PB Ratio measures the valuation of the stock relative to the underlying asset of the company.

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.


Black Rock Mining PB Ratio Related Terms


Black Rock Mining PB Ratio Historical Data

* Premium members only.

The historical data trend for Black Rock Mining'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.

Black Rock Mining PB Ratio Chart

Black Rock Mining Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.59 2.59 2.04 1.21 0.59

Black Rock Mining Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.68 1.21 0.72 0.59 0.52

Black Rock Mining PB Ratio Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Black Rock Mining'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.


Black Rock Mining PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Black Rock Mining's PB Ratio distribution charts can be found below:

* The bar in red indicates where Black Rock Mining's PB Ratio falls into.



Black Rock Mining PB Ratio Calculation

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.

Black Rock Mining's PB Ratio for today is calculated as follows:

PB Ratio=Share Price/Book Value per Share (Q: Dec. 2025)
=0.011/0.031
=0.35

* 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.

Frequently Asked Questions Learn more about PB Ratio →
What does a PB Ratio of 0.35 mean?
Black Rock Mining (ASX:BKT) has a PB Ratio of 0.35 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Black Rock Mining and its competitors. According to the industry distribution chart, Black Rock Mining ranks #109 out of 2358 companies in the Metals & Mining industry, placing it in the top 4.6%.
Is Black Rock Mining's PB Ratio too high?
Black Rock Mining's current PB Ratio is 0.35. The Metals & Mining industry median PB Ratio is 2.25. Black Rock Mining's value of 0.35 is 84.4% below this industry median. Based on the distribution chart, Black Rock Mining ranks #109 out of 2358 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers.
How does Black Rock Mining's PB Ratio compare to competitors?
According to the Metals & Mining industry distribution chart, Black Rock Mining ranks #109 out of 2358 companies for PB Ratio. This places Black Rock Mining in the top 5% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.25. Black Rock Mining's value of 0.35 is 84.4% 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 2.25, based on 2,358 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. Black Rock Mining's current PB Ratio of 0.35 is 84.4% 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 Black Rock Mining and its competitors. For the Metals & Mining industry, the median PB Ratio is 2.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Black Rock Mining's current PB Ratio is 0.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Black Rock Mining stock overvalued right now?
Black Rock Mining (ASX:BKT) has a current PB Ratio of 0.35. The current PB Ratio is 0.35 and 84.4% below the Metals & Mining industry median of 2.25. 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 Black Rock Mining (ASX:BKT), the current PB Ratio is 0.35 as of Jun. 26, 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.

Black Rock Mining Business Description

Other Exchanges N5V:Germany
Address Level 1, 1 Walker Avenue, West Perth, Perth, WA, AUS, 6005
Black Rock Mining Ltd is a graphite exploration company. The company is engaged in exploring and developing its Mahenge graphite project in Tanzania.