J-Stream (TSE:4308) Beta: 0.2964 (As of Jul. 15, 2026)

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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.
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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.

TSE:4308 J-Stream Inc TSE:4308
75 GF Score
Price 円355.00
GF Value 円389.52
Valuation Fairly Valued
! 4 Warning Signs
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What is J-Stream Beta?

J-Stream TSE:4308 +0.28% 75 Beta is 0.2964 as of Jul. 15, 2026. GuruFocus rates TSE:4308 with a GF Score™ of 75/100 and a GF Value™ of 円389.52 (Fairly Valued). 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 (2026-07-15), J-Stream's Beta is 0.2964.


J-Stream  (TSE:4308) 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)


J-Stream Beta Related Terms


J-Stream Beta Historical Data

* Premium members only.

The historical data trend for J-Stream'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.

J-Stream Beta Chart

J-Stream Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Beta
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.01 1.69 1.13 0.65 0.37

J-Stream Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
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 1.13 1.08 0.65 0.50 0.37

TSE:4308 vs NFLX, DIS, WBD: Beta Comparison

For the Entertainment subindustry, J-Stream'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.


J-Stream Beta vs Media - Diversified Industry

For the Media - Diversified industry and Communication Services sector, J-Stream's Beta distribution charts can be found below:

* The bar in red indicates where J-Stream's Beta falls into.


TSE:4308
75GF Score
J-Stream Inc TSE:4308
Beta is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

J-Stream 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 0.2964 mean?
J-Stream (TSE:4308) has a Beta of 0.2964 as of Jul. 15, 2026. Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. View historical data for J-Stream and its competitors.
Is J-Stream's Beta too high?
J-Stream's current Beta is 0.2964. Overall, J-Stream has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does J-Stream's Beta compare to NFLX and DIS?
J-Stream's Beta of 0.2964 can be compared against companies in the Media - Diversified 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 Media - Diversified company?
A good Beta depends on the Media - Diversified 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 J-Stream and its competitors. J-Stream's current Beta is 0.2964. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is J-Stream stock overvalued right now?
Based on GuruFocus' analysis, J-Stream (TSE:4308) is currently considered Fairly Valued. The stock's GF Value™ is 円389.52, compared to a current price of 円355.00 — trading 8.9% below its estimated fair value. The current Beta is 0.2964. J-Stream's overall GF Score™ is 75/100 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 J-Stream (TSE:4308), the current Beta is 0.2964 as of Jul. 15, 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 J-Stream (TSE:4308) Overvalued in 2026?

Based on GuruFocus' analysis, J-Stream stock appears to be undervalued. The current stock price of 円355.00 is trading 8.9% below its estimated GF Value™ of 円389.52. GuruFocus considers J-Stream to be Fairly Valued.

Key valuation signals for TSE:4308:

  • Beta: 0.2964
  • GF Value™: 円389.52 vs. price of 円355.00 (8.9% below fair value)
  • GF Score™: 75/100 with 4 warning signs

No single metric tells the full story. See the TSE:4308 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


J-Stream Business Description

Address Shiba 256 Square Building, Tokyo, JPN, 105-0014
J-Stream Inc offers end-to-end video business solutions from content delivery services, including video and audio content, such as music, movies, events, corporate briefings, education, and advertisements through the Internet; Web-based membership information management, and e-commerce and settlement services.
75GF Score

Get the complete analysis for TSE:4308

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

円355.00
Price
円389.52
GF Value