Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Sienna ResourcesSNNAF +1.37% Cyclically Adjusted PB Ratio is 0.72 as of Jul. 23, 2026. Among 1,542 Metals & Mining companies, Sienna Resources ranks better than 64.72% on this metric.
The historical rank and industry rank for Sienna Resources's Cyclically Adjusted PB Ratio or its related term are showing as below:
SNNAF'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0 Med: 0 Max: 0.77
Current: 0.77
During the past years, Sienna Resources's highest Cyclically Adjusted PB Ratio was 0.77. The lowest was 0.00. And the median was 0.00.
SNNAF's Cyclically Adjusted PB Ratio is ranked better than 64.72% of 1542
companies
in the Metals & Mining industry
Industry Median: 1.41
vs SNNAF: 0.77
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Sienna Resources's adjusted book value per share data for the three months ended in Dec. 2025 was $0.065. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $0.07 for the trailing ten years ended in Dec. 2025.
Shiller PE for Stocks: The True Measure of Stock Valuation
Sienna Resources (OTCPK:SNNAF) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Sienna Resources Cyclically Adjusted PB Ratio Related Terms
Sienna Resources Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Sienna Resources's Cyclically Adjusted 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.
Sienna Resources Cyclically Adjusted PB Ratio Chart
Sienna Resources Cyclically Adjusted PB Ratio Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Sienna Resources's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted 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.
Sienna Resources Cyclically Adjusted PB Ratio vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Sienna Resources's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Sienna Resources's Cyclically Adjusted PB Ratio falls into.
Sienna Resources Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Sienna Resources's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 0.72 mean?
Sienna Resources (SNNAF) has a Cyclically Adjusted PB Ratio of 0.72 as of Jul. 23, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sienna Resources and its competitors. According to the industry distribution chart, Sienna Resources ranks #544 out of 1542 companies in the Metals & Mining industry, placing it in the top 35.3%.
Is Sienna Resources' Cyclically Adjusted PB Ratio too high?
Sienna Resources' current Cyclically Adjusted PB Ratio is 0.72. The Metals & Mining industry median Cyclically Adjusted PB Ratio is 1.41. Sienna Resources' value of 0.72 is 48.9% below this industry median. Based on the distribution chart, Sienna Resources ranks #544 out of 1542 companies in the Metals & Mining industry, which is above the industry midpoint.
How does Sienna Resources' Cyclically Adjusted PB Ratio compare to competitors?
According to the Metals & Mining industry distribution chart, Sienna Resources ranks #544 out of 1542 companies for Cyclically Adjusted PB Ratio. This puts Sienna Resources in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.41. Sienna Resources' value of 0.72 is 48.9% 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 Cyclically Adjusted PB Ratio for a Metals & Mining company?
The median Cyclically Adjusted PB Ratio among Metals & Mining companies is 1.41, based on 1,542 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sienna Resources's current Cyclically Adjusted PB Ratio of 0.72 is 48.9% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sienna Resources and its competitors. For the Metals & Mining industry, the median Cyclically Adjusted PB Ratio is 1.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sienna Resources's current Cyclically Adjusted PB Ratio is 0.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sienna Resources stock overvalued right now?
Sienna Resources (SNNAF) has a current Cyclically Adjusted PB Ratio of 0.72. The current Cyclically Adjusted PB Ratio is 0.72 and 48.9% below the Metals & Mining industry median of 1.41. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Sienna Resources (SNNAF), the current Cyclically Adjusted PB Ratio is 0.72 as of Jul. 23, 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.
Sienna Resources Inc is an exploration-stage company. It is focused on exploring for and developing high-grade deposits in politically stable, environmentally responsible and ethical mining jurisdictions. The projects of the company are Case Lake West Cesium and Spodumene Pegmatite Project, Cave Creek Lithium Project, Clayton Valley Deep Basin Lithium Brine JV, Clayton Valley Deep Basin Lithium Brine Project, Elko Lithium Project, Esmeralda County Gold Project, and Stonesthrow Copper/Gold Project.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
SNNAF has been successfully added to your 
