Rainbow Rare EarthsRBWRF -44.95%21 PB Ratio is 18.35 as of Jul. 04, 2026, which is 161% above its 10-year median of 7.03. GuruFocus rates RBWRF with a GF Score™ of 21/100 and a GF Value™ of $0.21 (Fairly Valued). The stock has 3 warning signs investors should review. Among 2,354 Metals & Mining companies, Rainbow Rare Earths ranks worse than 96.05% on this metric.
Rainbow Rare Earths Ltd stock PB Ratio (=23.61) is close to 10-year high of 23.61.
The historical rank and industry rank for Rainbow Rare Earths's PB Ratio or its related term are showing as below:
RBWRF'
s PB Ratio Range Over the Past 10 Years
Min: 0.39 Med: 7.03 Max: 40
Current: 22.02
During the past 12 years, Rainbow Rare Earths's highest PB Ratio was 40.00. The lowest was 0.39. And the median was 7.03.
RBWRF's PB Ratio is ranked worse than 96.05% of 2354
companies
in the Metals & Mining industry
Industry Median: 2.28
vs RBWRF: 22.02
During the past 12 months, Rainbow Rare Earths's average Book Value Per Share Growth Rate was -55.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -15.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -0.70% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 2.40% per year.
During the past 12 years, the highest 3-Year average Book Value Per Share Growth Rate of Rainbow Rare Earths was 253.00% per year. The lowest was -29.20% per year. And the median was 7.70% per year.
Back to Basics: PB Ratio
Rainbow Rare Earths (OTCPK:RBWRF) PB Ratio Explanation
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.
Rainbow Rare Earths PB Ratio Related Terms
Rainbow Rare Earths PB Ratio Historical Data
* Premium members only.
The historical data trend for Rainbow Rare Earths'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.
Rainbow Rare Earths PB Ratio Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Rainbow Rare Earths'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.
Rainbow Rare Earths PB Ratio vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Rainbow Rare Earths's PB Ratio distribution charts can be found below:
* The bar in red indicates where Rainbow Rare Earths'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.
* 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.
Rainbow Rare Earths (RBWRF) has a PB Ratio of 18.35 as of Jul. 04, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Rainbow Rare Earths and its competitors. This is 161% above median its historical median of 7.03. Over the past decade, Rainbow Rare Earths' PB Ratio has ranged from 0.39 to 40.00. According to the industry distribution chart, Rainbow Rare Earths ranks #2261 out of 2354 companies in the Metals & Mining industry, placing it in the top 96%.
Is Rainbow Rare Earths' PB Ratio too high?
Rainbow Rare Earths' current PB Ratio of 18.35 is 161% above median its 10-year median of 7.03. Over the past 10 years, this metric has ranged from a low of 0.39 to a high of 40.00. The Metals & Mining industry median PB Ratio is 2.28. Rainbow Rare Earths' value of 18.35 is 704.8% above this industry median. Based on the distribution chart, Rainbow Rare Earths ranks #2261 out of 2354 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers. Overall, Rainbow Rare Earths has a GF Score™ of 21/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Rainbow Rare Earths' PB Ratio compare to competitors?
According to the Metals & Mining industry distribution chart, Rainbow Rare Earths ranks #2261 out of 2354 companies for PB Ratio. This places Rainbow Rare Earths in the lower half of its industry. The industry median PB Ratio is 2.28. Rainbow Rare Earths' value of 18.35 is 704.8% above this benchmark. Historically, Rainbow Rare Earths' own PB Ratio has ranged from 0.39 to 40.00 over the past decade. While the company's 10-year median is 7.03 vs. the industry median of 2.28, Rainbow Rare Earths has consistently been above the industry average. 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 2.28, based on 2,354 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. Rainbow Rare Earths's current PB Ratio of 18.35 is 704.8% above 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 Rainbow Rare Earths and its competitors. For the Metals & Mining industry, the median PB Ratio is 2.28 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rainbow Rare Earths's current PB Ratio is 18.35, which is 161% above median its own 10-year median of 7.03. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rainbow Rare Earths stock overvalued right now?
Based on GuruFocus' analysis, Rainbow Rare Earths (RBWRF) is currently considered Fairly Valued. The stock's GF Value™ is $0.21, compared to a current price of $0.22 — trading 4.9% above its estimated fair value. The current PB Ratio is 18.35, which is 161% above median its 10-year median of 7.03 and 704.8% above the Metals & Mining industry median of 2.28. Rainbow Rare Earths' overall GF Score™ is 21/100 with 3 warning signs 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 Rainbow Rare Earths (RBWRF), the current PB Ratio is 18.35 as of Jul. 04, 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.
Is Rainbow Rare Earths (RBWRF) Overvalued in 2026?
Based on GuruFocus' analysis, Rainbow Rare Earths stock appears to be overvalued.
The current stock price of $0.22 is trading 4.9% above its estimated GF Value™ of $0.21.
GuruFocus considers Rainbow Rare Earths to be Fairly Valued.
Key valuation signals for RBWRF:
PB Ratio: 18.35 (161% above median its 10-year median of 7.03)
GF Value™: $0.21 vs. price of $0.22 (4.9% above fair value)
Industry Position: 704.8% above the Metals & Mining median (#2261 of 2354)
No single metric tells the full story. See the RBWRF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rainbow Rare Earths Ltd is focused on the development of an independent and ethical supply chain of the rare earth elements that are driving the green energy transition. The company is advancing two projects, Phalaborwa in South Africa and Uberaba in Brazil, which are intended to produce rare earth elements for industrial, energy, and defence applications.
21GF Score
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