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.
Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.
National Gypsum Co (SAU:2090) Volatility Explanation
Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.
Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.
Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
National Gypsum Co Volatility Related Terms
SAU:2090 vs CRH, VMC, MLM: Volatility Comparison
For the Building Materials subindustry, National Gypsum Co's Volatility, along with its competitors' market caps and Volatility 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.
National Gypsum Co Volatility vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, National Gypsum Co's Volatility distribution charts can be found below:
* The bar in red indicates where National Gypsum Co's Volatility falls into.
National Gypsum Co (SAU:2090) Volatility Calculation
The annualized volatility is calculated as following:
σA
=
σM
*
√12
=
√ 1/(n-1) ∑(Ri - R')^2
*
√12
Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.
* 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.
National Gypsum Co (SAU:2090) has a Volatility of 24.83% as of Jul. 22, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on National Gypsum Co and its competitors.
Is National Gypsum Co's Volatility too high?
National Gypsum Co's current Volatility is 24.83%. Overall, National Gypsum Co has a GF Score™ of 62/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does National Gypsum Co's Volatility compare to CRH and VMC?
National Gypsum Co's Volatility of 24.83% can be compared against companies in the Building Materials industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Building Materials company?
A good Volatility depends on the Building Materials industry context. However, Volatility should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on National Gypsum Co and its competitors. National Gypsum Co's current Volatility is 24.83%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Gypsum Co stock overvalued right now?
Based on GuruFocus' analysis, National Gypsum Co (SAU:2090) is currently considered Possible Value Trap. The stock's GF Value™ is ﷼24.01, compared to a current price of ﷼13.92 — trading 42% below its estimated fair value. The current Volatility is 24.83%. National Gypsum Co's overall GF Score™ is 62/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For National Gypsum Co (SAU:2090), the current Volatility is 24.83% as of Jul. 22, 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 National Gypsum Co (SAU:2090) Overvalued in 2026?
Based on GuruFocus' analysis, National Gypsum Co stock appears to be undervalued.
The current stock price of ﷼13.92 is trading 42% below its estimated GF Value™ of ﷼24.01.
GuruFocus considers National Gypsum Co to be Possible Value Trap.
Key valuation signals for SAU:2090:
Volatility: 24.83%
GF Value™: ﷼24.01 vs. price of ﷼13.92 (42% below fair value)
No single metric tells the full story. See the SAU:2090 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
National Gypsum Co is engaged in the manufacture and production of gypsum and its derivatives extracted from concession areas, trading in gypsum and its derivatives, the production of various materials that can be extracted from gypsum mechanically and chemically, and carrying out all the necessary work to achieve its purpose. The company has concession rights for raw stone in three concession areas (quarries) in the cities of Riyadh, Dammam, and Yanbu. Its products include Plastering gypsum, Splash powder, Machine-sprayed gypsum, Adhesive plaster, Agricultural gypsum, and New gypsum products, including ceramic gypsum, medical gypsum, glue gypsum, molding gypsum, solid gypsum for facades, fast-setting gypsum, and high-resistance gypsum. It operates in a single segment.
62GF Score
Get the complete analysis for SAU:2090
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
SAU:2090 has been successfully added to your 
