Sturm Ruger (STU:ST2) Beta: -0.3039 (As of Aug. 05, 2026)

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Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
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STU:ST2 Sturm Ruger & Co Inc STU:ST2
71 GF Score
Price €33.80
GF Value €39.51
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Sturm Ruger Beta?

Sturm Ruger STU:ST2 +1.26% 71 Beta is -0.3039 as of Aug. 05, 2026. GuruFocus rates STU:ST2 with a GF Score™ of 71/100 and a GF Value™ of €39.51 (Modestly Undervalued). The stock has 4 warning signs investors should review.

Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. As of today (2026-08-05), Sturm Ruger's Beta is -0.3039.


Sturm Ruger  (STU:ST2) Beta Explanation

Beta is a measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. We usually compare beta to 1. A beta of 1 indicates that the security's price will move with the market. A beta of less than 1 means that the security will be less volatile than the market. A beta of greater than 1 indicates that the security's price will be more volatile than the market.

Beta is primarily used in the Capital Asset Pricing Model (CAPM) to calculate the Cost of Equity, which can be used in the calculation of WACC %. The formula of Cost of Equity is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)


Sturm Ruger Beta Related Terms


Sturm Ruger Beta Historical Data

* Premium members only.

The historical data trend for Sturm Ruger's Beta 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.

Sturm Ruger Beta Chart

Sturm Ruger Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Beta
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.14 0.08 0.34 0.03 -0.41

Sturm Ruger Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Beta 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 0.54 0.28 -0.41 -0.13 0.00

STU:ST2 vs SWBI, SATL, PKE: Beta Comparison

For the Aerospace & Defense subindustry, Sturm Ruger's Beta, along with its competitors' market caps and Beta 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.


Sturm Ruger Beta vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Sturm Ruger's Beta distribution charts can be found below:

* The bar in red indicates where Sturm Ruger's Beta falls into.


STU:ST2
71GF Score
Sturm Ruger & Co Inc STU:ST2
Beta is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sturm Ruger Beta Calculation

Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. A stock's beta can be calculated by dividing the product of the covariance of the individual stock's returns and the market's returns by the variance of the market's returns over a specified period. Basically, GuruFocus uses the returns calculated over three-year period.

Frequently Asked Questions Learn more about Beta →
What does a Beta of -0.3039 mean?
Sturm Ruger (STU:ST2) has a Beta of -0.3039 as of Aug. 05, 2026. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for Sturm Ruger and its competitors.
Is Sturm Ruger's Beta too high?
Sturm Ruger's current Beta is -0.3039. Overall, Sturm Ruger has a GF Score™ of 71/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sturm Ruger's Beta compare to SWBI and SATL?
Sturm Ruger's Beta of -0.3039 can be compared against companies in the Aerospace & Defense industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Beta for an Aerospace & Defense company?
A good Beta depends on the Aerospace & Defense industry context. However, Beta 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 Beta mean?
A high Beta can signal that a stock is expensive relative to its fundamentals. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for Sturm Ruger and its competitors. Sturm Ruger's current Beta is -0.3039. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sturm Ruger stock overvalued right now?
Based on GuruFocus' analysis, Sturm Ruger (STU:ST2) is currently considered Modestly Undervalued. The stock's GF Value™ is €39.51, compared to a current price of €33.80 — trading 14.5% below its estimated fair value. The current Beta is -0.3039. Sturm Ruger's overall GF Score™ is 71/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Beta calculated?
Beta is calculated from a company's financial statements. For Sturm Ruger (STU:ST2), the current Beta is -0.3039 as of Aug. 05, 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 Sturm Ruger (STU:ST2) Overvalued in 2026?

Based on GuruFocus' analysis, Sturm Ruger stock appears to be undervalued. The current stock price of €33.80 is trading 14.5% below its estimated GF Value™ of €39.51. GuruFocus considers Sturm Ruger to be Modestly Undervalued.

Key valuation signals for STU:ST2:

  • Beta: -0.3039
  • GF Value™: €39.51 vs. price of €33.80 (14.5% below fair value)
  • GF Score™: 71/100 with 4 warning signs

No single metric tells the full story. See the STU:ST2 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sturm Ruger Business Description

Other Exchanges RGR:USAST2:Germany
Address 1 Lacey Place, Southport, CT, USA, 06890
Sturm Ruger & Co Inc and its subsidiary are principally engaged in the design, manufacture, and sale of firearms to domestic customers. The company's design and manufacturing operations are in the United States, and almost all product content is domestic. The company has two reportable operating segments: firearms and castings. The firearms segment manufactures and sells rifles, pistols, and revolvers principally to a number of federally-licensed, independent wholesale distributors located in the United States. The castings segment manufactures and sells steel investment castings and metal injection molding parts. It generates maximum income from the sale of Firearms.
71GF Score

Get the complete analysis for STU:ST2

Beta is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€33.80
Price
€39.51
GF Value