SPWR (SunPower) Beta: 2.3987 (As of Aug. 24, 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

SPWR SunPower Inc SPWR
53 GF Score
Price $0.27
GF Value $2.02
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is SunPower Beta?

SunPower SPWR -9.51% 53 Beta is 2.3987 as of Aug. 24, 2026. GuruFocus rates SPWR with a GF Score™ of 53/100 and a GF Value™ of $2.02 (Possible Value Trap). The stock has 6 warning signs investors should review.

Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. As of today (2026-08-24), SunPower's Beta is 2.3987.


SunPower  (NAS:SPWR) 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)


SunPower Beta Related Terms


SunPower Beta Historical Data

* Premium members only.

The historical data trend for SunPower'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.

SunPower Beta Chart

SunPower Annual Data
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SunPower Quarterly Data
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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 0.00 0.00 0.00 0.00 0.00

SPWR vs PN, HYSR, FTCI: Beta Comparison

For the Solar subindustry, SunPower'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.


SunPower Beta vs Semiconductors Industry

For the Semiconductors industry and Technology sector, SunPower's Beta distribution charts can be found below:

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


SPWR
53GF Score
SunPower Inc SPWR
Beta is just one metric. See GF Score™, valuation, warning signs, and more.
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SunPower 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 2.3987 mean?
SunPower (SPWR) has a Beta of 2.3987 as of Aug. 24, 2026. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for SunPower and its competitors.
Is SunPower's Beta too high?
SunPower's current Beta is 2.3987. Overall, SunPower has a GF Score™ of 53/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does SunPower's Beta compare to PN and HYSR?
SunPower's Beta of 2.3987 can be compared against companies in the Semiconductors 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 a Semiconductors company?
A good Beta depends on the Semiconductors 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 SunPower and its competitors. SunPower's current Beta is 2.3987. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SunPower stock overvalued right now?
Based on GuruFocus' analysis, SunPower (SPWR) is currently considered Possible Value Trap. The stock's GF Value™ is $2.02, compared to a current price of $0.27 — trading 86.4% below its estimated fair value. The current Beta is 2.3987. SunPower's overall GF Score™ is 53/100 with 6 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 SunPower (SPWR), the current Beta is 2.3987 as of Aug. 24, 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 SunPower (SPWR) Overvalued in 2026?

Based on GuruFocus' analysis, SunPower stock appears to be undervalued. The current stock price of $0.27 is trading 86.4% below its estimated GF Value™ of $2.02. GuruFocus considers SunPower to be Possible Value Trap.

Key valuation signals for SPWR:

  • Beta: 2.3987
  • GF Value™: $2.02 vs. price of $0.27 (86.4% below fair value)
  • GF Score™: 53/100 with 6 warning signs

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


SunPower Business Description

Address 1403 North Research Way, Orem, UT, USA, 84097
SunPower Inc is a solar technology and energy services provider, specializing in residential solar solutions, battery storage, and home energy management. Company has three segments namely, Residential Solar Installation, this segment performs solar system, storage and battery installations for residential homeowners. New Homes Business-This segment performs solar system installations for new home builders and Dealer -This segment provides a third-party solar energy sales force to initiate and execute contracts with customers throughout the United States. Company generates key revenue from the Residential Solar Installation segment.
53GF Score

Get the complete analysis for SPWR

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

$0.27
Price
$2.02
GF Value