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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)
QSI Co Beta Related Terms
QSI Co Beta Historical Data
* Premium members only.
The historical data trend for QSI Co'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.
For the Semiconductor Equipment & Materials subindustry, QSI Co'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.
QSI Co Beta vs Semiconductors Industry
For the Semiconductors industry and Technology sector, QSI Co's Beta distribution charts can be found below:
* The bar in red indicates where QSI Co's Beta falls into.
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.
QSI Co (XKRX:066310) has a Beta of 0.2445 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 QSI Co and its competitors.
Is QSI Co's Beta too high?
QSI Co's current Beta is 0.2445. Overall, QSI Co has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does QSI Co's Beta compare to AMAT and LRCX?
QSI Co's Beta of 0.2445 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 QSI Co and its competitors. QSI Co's current Beta is 0.2445. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is QSI Co stock overvalued right now?
Based on GuruFocus' analysis, QSI Co (XKRX:066310) is currently considered Modestly Undervalued. The stock's GF Value™ is ₩10,106.89, compared to a current price of ₩7,460.00 — trading 26.2% below its estimated fair value. The current Beta is 0.2445. QSI Co's overall GF Score™ is 77/100 with 3 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 QSI Co (XKRX:066310), the current Beta is 0.2445 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 QSI Co (XKRX:066310) Overvalued in 2026?
Based on GuruFocus' analysis, QSI Co stock appears to be undervalued.
The current stock price of ₩7,460.00 is trading 26.2% below its estimated GF Value™ of ₩10,106.89.
GuruFocus considers QSI Co to be Modestly Undervalued.
Key valuation signals for XKRX:066310:
Beta: 0.2445
GF Value™: ₩10,106.89 vs. price of ₩7,460.00 (26.2% below fair value)
No single metric tells the full story. See the XKRX:066310 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
QSI Co Ltd is a South Korea-based company mainly engaged in the manufacture of semiconductor laser diodes (LDs). The product portfolio of the company includes Red Laser diode and Infra-Red Laser diode.
77GF Score
Get the complete analysis for XKRX:066310
Beta is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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