SIERF (Sierra Grande Minerals) Cyclically Adjusted PB Ratio: 0.27 (As of Jul. 26, 2026) β€” 440% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

What is Sierra Grande Minerals Cyclically Adjusted PB Ratio?

Sierra Grande Minerals SIERF -7.98% Cyclically Adjusted PB Ratio is 0.27 as of Jul. 26, 2026, which is 440% above its 10-year median of 0.05. The stock has 3 warning signs investors should review. Among 1,540 Metals & Mining companies, Sierra Grande Minerals ranks better than 86.3% on this metric.

As of today (2026-07-26), Sierra Grande Minerals's current share price is $0.04645. Sierra Grande Minerals's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was $0.17. Sierra Grande Minerals's Cyclically Adjusted PB Ratio for today is 0.27.

The historical rank and industry rank for Sierra Grande Minerals's Cyclically Adjusted PB Ratio or its related term are showing as below:

SIERF' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.01   Med: 0.05   Max: 0.56
Current: 0.22

During the past years, Sierra Grande Minerals's highest Cyclically Adjusted PB Ratio was 0.56. The lowest was 0.01. And the median was 0.05.

SIERF's Cyclically Adjusted PB Ratio is ranked better than
86.3% of 1540 companies
in the Metals & Mining industry
Industry Median: 1.41 vs SIERF: 0.22

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.

Sierra Grande Minerals's adjusted book value per share data for the three months ended in Dec. 2025 was $0.012. 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 $0.17 for the trailing ten years ended in Dec. 2025.

Shiller PE for Stocks: The True Measure of Stock Valuation


Sierra Grande Minerals  (OTCPK:SIERF) 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.


Sierra Grande Minerals Cyclically Adjusted PB Ratio Related Terms


Sierra Grande Minerals Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Sierra Grande Minerals'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.

Sierra Grande Minerals Cyclically Adjusted PB Ratio Chart

Sierra Grande Minerals Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.17 0.10 0.11 0.14 0.39

Sierra Grande Minerals Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Cyclically Adjusted 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 0.14 0.37 0.54 0.65 0.39

Sierra Grande Minerals Cyclically Adjusted PB Ratio Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Sierra Grande Minerals'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.


Sierra Grande Minerals Cyclically Adjusted PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Sierra Grande Minerals's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Sierra Grande Minerals's Cyclically Adjusted PB Ratio falls into.



Sierra Grande Minerals 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.

Sierra Grande Minerals's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=0.04645/0.17
=0.27

* 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.

Sierra Grande Minerals's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 is calculated as:

For example, Sierra Grande Minerals's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book=Book Value per Share/CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.012/130.3661*130.3661
=0.012

Current CPI (Dec. 2025) = 130.3661.

Sierra Grande Minerals Quarterly Data

Book Value per Share CPI Adj_Book
201603 0.436 101.054 0.562
201606 0.368 102.002 0.470
201609 0.371 101.765 0.475
201612 0.201 101.449 0.258
201703 0.202 102.634 0.257
201706 0.203 103.029 0.257
201709 0.212 103.345 0.267
201712 0.222 103.345 0.280
201803 0.213 105.004 0.264
201806 0.187 105.557 0.231
201809 0.181 105.636 0.223
201812 0.216 105.399 0.267
201903 0.213 106.979 0.260
201906 0.198 107.690 0.240
201909 0.192 107.611 0.233
201912 0.181 107.769 0.219
202003 0.163 107.927 0.197
202006 0.162 108.401 0.195
202009 -0.002 108.164 -0.002
202012 0.009 108.559 0.011
202103 0.053 110.298 0.063
202106 0.042 111.720 0.049
202109 0.035 112.905 0.040
202112 0.034 113.774 0.039
202203 0.029 117.646 0.032
202206 0.073 120.806 0.079
202209 0.069 120.648 0.075
202212 0.064 120.964 0.069
202303 0.058 122.702 0.062
202306 0.057 124.203 0.060
202309 0.054 125.230 0.056
202312 0.054 125.072 0.056
202403 0.058 126.258 0.060
202406 0.057 127.522 0.058
202409 0.056 127.285 0.057
202412 0.059 127.364 0.060
202503 0.056 129.181 0.057
202506 0.056 129.892 0.056
202509 0.014 130.287 0.014
202512 0.012 130.366 0.012

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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 0.27 mean?
Sierra Grande Minerals (SIERF) has a Cyclically Adjusted PB Ratio of 0.27 as of Jul. 26, 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 Sierra Grande Minerals and its competitors. This is 440% above median its historical median of 0.05. Over the past decade, Sierra Grande Minerals' Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.56. According to the industry distribution chart, Sierra Grande Minerals ranks #211 out of 1540 companies in the Metals & Mining industry, placing it in the top 13.7%.
Is Sierra Grande Minerals' Cyclically Adjusted PB Ratio too high?
Sierra Grande Minerals' current Cyclically Adjusted PB Ratio of 0.27 is 440% above median its 10-year median of 0.05. Over the past 10 years, this metric has ranged from a low of 0.01 to a high of 0.56. The Metals & Mining industry median Cyclically Adjusted PB Ratio is 1.41. Sierra Grande Minerals' value of 0.27 is 80.9% below this industry median. Based on the distribution chart, Sierra Grande Minerals ranks #211 out of 1540 companies in the Metals & Mining industry, which is in the top quartile β€” a strong position relative to peers.
How does Sierra Grande Minerals' Cyclically Adjusted PB Ratio compare to competitors?
According to the Metals & Mining industry distribution chart, Sierra Grande Minerals ranks #211 out of 1540 companies for Cyclically Adjusted PB Ratio. This places Sierra Grande Minerals in the top 14% of its industry β€” outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 1.41. Sierra Grande Minerals' value of 0.27 is 80.9% below this benchmark. Historically, Sierra Grande Minerals' own Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.56 over the past decade. While the company's 10-year median is 0.05 vs. the industry median of 1.41, Sierra Grande Minerals has consistently been below 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 Cyclically Adjusted PB Ratio for a Metals & Mining company?
The median Cyclically Adjusted PB Ratio among Metals & Mining companies is 1.41, based on 1,540 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 β€” investors should consider it alongside profitability, growth, and financial strength metrics. Sierra Grande Minerals's current Cyclically Adjusted PB Ratio of 0.27 is 80.9% 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 Sierra Grande Minerals and its competitors. For the Metals & Mining industry, the median Cyclically Adjusted PB Ratio is 1.41 β€” values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sierra Grande Minerals's current Cyclically Adjusted PB Ratio is 0.27, which is 440% above median its own 10-year median of 0.05. However, context matters β€” high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Scoreβ„’ and GF Valueβ„’.
Is Sierra Grande Minerals stock overvalued right now?
Sierra Grande Minerals (SIERF) has a current Cyclically Adjusted PB Ratio of 0.27. The current Cyclically Adjusted PB Ratio is 0.27, which is 440% above median its 10-year median of 0.05 and 80.9% below the Metals & Mining industry median of 1.41. Investors should evaluate multiple metrics β€” including profitability, growth, and financial strength β€” before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Sierra Grande Minerals (SIERF), the current Cyclically Adjusted PB Ratio is 0.27 as of Jul. 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.

Sierra Grande Minerals Business Description

Other Exchanges SGRO:Canada
Address 9648-128th Street, Suite 210, Surrey, BC, CAN, V3T 2X9
Sierra Grande Minerals Inc is a junior exploration company which engages in the acquisition, exploration, and development of early-stage mineral prospects with projects currently in Nevada. The company has an option to buy the 100% interest in the Giltra/Sat project. Its other project includes Silveria Property, Betty East Property, and B&C Springs/Mildred Property.