Sao MartinhoBSP:SMTO3 +2.24%78 PB Ratio is 0.66 as of Jun. 28, 2026, which is 66% below its 10-year median of 1.95. GuruFocus rates BSP:SMTO3 with a GF Score™ of 78/100 and a GF Value™ of R$25.54 (Possible Value Trap). The stock has 8 warning signs investors should review. Among 1,579 Chemicals companies, Sao Martinho ranks better than 84.42% 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 (2026-06-28), Sao Martinho's share price is R$15.04. Sao Martinho's Book Value per Share for the quarter that ended in Mar. 2026 was R$22.82. Hence, Sao Martinho's PB Ratio of today is 0.66.
Good Sign:
Sao Martinho SA stock PB Ratio (=0.66) is close to 10-year low of 0.62.
The historical rank and industry rank for Sao Martinho's PB Ratio or its related term are showing as below:
BSP:SMTO3'
s PB Ratio Range Over the Past 10 Years
Min: 0.62 Med: 1.95 Max: 3.5
Current: 0.66
During the past 13 years, Sao Martinho's highest PB Ratio was 3.50. The lowest was 0.62. And the median was 1.95.
BSP:SMTO3's PB Ratio is ranked better than 84.42% of 1579
companies
in the Chemicals industry
Industry Median: 1.76
vs BSP:SMTO3: 0.66
During the past 12 months, Sao Martinho's average Book Value Per Share Growth Rate was 11.90% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 10.20% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 13.90% per year.
During the past 10 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 Sao Martinho was 67.40% per year. The lowest was 0.60% per year. And the median was 8.95% 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.
Sao Martinho PB Ratio Related Terms
Sao Martinho PB Ratio Historical Data
* Premium members only.
The historical data trend for Sao Martinho'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 Specialty Chemicals subindustry, Sao Martinho'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.
Sao Martinho PB Ratio vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Sao Martinho's PB Ratio distribution charts can be found below:
* The bar in red indicates where Sao Martinho'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.
Sao Martinho'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.
Sao Martinho (BSP:SMTO3) has a PB Ratio of 0.66 as of Jun. 28, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Sao Martinho and its competitors. This is 66% below median its historical median of 1.95. Over the past decade, Sao Martinho's PB Ratio has ranged from 0.62 to 3.50. According to the industry distribution chart, Sao Martinho ranks #246 out of 1579 companies in the Chemicals industry, placing it in the top 15.6%.
Is Sao Martinho's PB Ratio too high?
Sao Martinho's current PB Ratio of 0.66 is 66% below median its 10-year median of 1.95. Over the past 10 years, this metric has ranged from a low of 0.62 to a high of 3.50. The Chemicals industry median PB Ratio is 1.76. Sao Martinho's value of 0.66 is 62.5% below this industry median. Based on the distribution chart, Sao Martinho ranks #246 out of 1579 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, Sao Martinho has a GF Score™ of 78/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Sao Martinho's PB Ratio compare to LIN and SHW?
According to the Chemicals industry distribution chart, Sao Martinho ranks #246 out of 1579 companies for PB Ratio. This places Sao Martinho in the top 16% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.76. Sao Martinho's value of 0.66 is 62.5% below this benchmark. Historically, Sao Martinho's own PB Ratio has ranged from 0.62 to 3.50 over the past decade. While the company's 10-year median is 1.95 vs. the industry median of 1.76, Sao Martinho 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 PB Ratio for a Chemicals company?
The median PB Ratio among Chemicals companies is 1.76, based on 1,579 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. Sao Martinho's current PB Ratio of 0.66 is 62.5% 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 Sao Martinho and its competitors. For the Chemicals industry, the median PB Ratio is 1.76 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sao Martinho's current PB Ratio is 0.66, which is 66% below median its own 10-year median of 1.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sao Martinho stock overvalued right now?
Based on GuruFocus' analysis, Sao Martinho (BSP:SMTO3) is currently considered Possible Value Trap. The stock's GF Value™ is R$25.54, compared to a current price of R$15.04 — trading 41.1% below its estimated fair value. The current PB Ratio is 0.66, which is 66% below median its 10-year median of 1.95 and 62.5% below the Chemicals industry median of 1.76. Sao Martinho's overall GF Score™ is 78/100 with 8 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 Sao Martinho (BSP:SMTO3), the current PB Ratio is 0.66 as of Jun. 28, 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 Sao Martinho (BSP:SMTO3) Overvalued in 2026?
Based on GuruFocus' analysis, Sao Martinho stock appears to be undervalued.
The current stock price of R$15.04 is trading 41.1% below its estimated GF Value™ of R$25.54.
GuruFocus considers Sao Martinho to be Possible Value Trap.
Key valuation signals for BSP:SMTO3:
PB Ratio: 0.66 (66% below median its 10-year median of 1.95)
GF Value™: R$25.54 vs. price of R$15.04 (41.1% below fair value)
Industry Position: 62.5% below the Chemicals median (#246 of 1579)
No single metric tells the full story. See the BSP:SMTO3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sao Martinho SA operates the following segments: sugar, ethanol, electricity, real estate ventures, Yeast, and other products. Sales of sugar and ethanol, both of which the company produces with sugar cane, comprise the vast majority of the company's revenue. Sao Martinho produces sugar and ethanol in its four Brazilian mills. The company derives its sugar cane mostly from its own plantations, agricultural partnerships, shareholders, and related companies. Sao Martinho exports most of its sugar, and it sells most of its ethanol domestically.
78GF Score
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