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LandMark OptoelectronicsROCO:3081 +9.76%66 Median PS Value is NT$286.87 as of Aug. 01, 2026, which is 100% below its 10-year median of 2.01. GuruFocus rates ROCO:3081 with a GF Score™ of 66/100 and a GF Value™ of NT$754.75 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 539 Semiconductors companies, LandMark Optoelectronics ranks worse than 96.66% on this metric.
This valuation method assumes that the stock valuation will revert to its historical (10-Year) median in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
The historical rank and industry rank for LandMark Optoelectronics's Median PS Value or its related term are showing as below:
ROCO:3081'
s Price-to-Median-PS-Value Range Over the Past 10 Years
Min: 1.07 Med: 2.01 Max: 5.68
Current: 5.68
During the past 13 years, the highest Price to Median PS Value of LandMark Optoelectronics was 5.68. The lowest was 1.07. And the median was 2.01.
ROCO:3081's Price-to-Median-PS-Value is ranked worse than 96.66% of 539
companies
in the Semiconductors industry
Industry Median: 1.23
vs ROCO:3081: 5.68
LandMark Optoelectronics (ROCO:3081) Median PS Value Explanation
This valuation method assumes that the stock valuation will revert to its historical (10-Year) mean in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio
is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
It also assumes that over time the profit margin is constant. If a company increases its profit margin to a sustainable level, this value might under-estimate its value. If it has permanent declined profit margins, this may over-estimate the company's value.
LandMark Optoelectronics's Price to Median PS Value for today is calculated as
Price to Median PS Value
=
Share Price
/
Median PS Value
=
1630.00
/
286.87
=
5.68
* 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.
LandMark Optoelectronics Median PS Value Related Terms
LandMark Optoelectronics Median PS Value Historical Data
* 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.
ROCO:3081 vs AMAT, LRCX, KLAC: Median PS Value Comparison
For the Semiconductor Equipment & Materials subindustry, LandMark Optoelectronics's Price-to-Median-PS-Value, along with its competitors' market caps and Price-to-Median-PS-Value 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.
LandMark Optoelectronics Price-to-Median-PS-Value vs Semiconductors Industry
For the Semiconductors industry and Technology sector, LandMark Optoelectronics's Price-to-Median-PS-Value distribution charts can be found below:
* The bar in red indicates where LandMark Optoelectronics's Price-to-Median-PS-Value falls into.
10-Year Median PS Ratio is 11.0047.
LandMark Optoelectronics's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$26.068.
* 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.
LandMark Optoelectronics (ROCO:3081) has a Median PS Value of NT$286.87 as of Aug. 01, 2026. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on LandMark Optoelectronics and its competitors. This is 14172% above median its historical median of 2.01. Over the past decade, LandMark Optoelectronics' Median PS Value has ranged from 1.07 to 5.68. According to the industry distribution chart, LandMark Optoelectronics ranks #521 out of 539 companies in the Semiconductors industry, placing it in the top 96.7%.
Is LandMark Optoelectronics' Median PS Value too high?
LandMark Optoelectronics' current Median PS Value of NT$286.87 is 14172% above median its 10-year median of 2.01. Over the past 10 years, this metric has ranged from a low of 1.07 to a high of 5.68. Based on the distribution chart, LandMark Optoelectronics ranks #521 out of 539 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, LandMark Optoelectronics has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does LandMark Optoelectronics' Median PS Value compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, LandMark Optoelectronics ranks #521 out of 539 companies for Median PS Value. This places LandMark Optoelectronics in the lower half of its industry. The industry median Median PS Value is 1.23. Historically, LandMark Optoelectronics' own Median PS Value has ranged from 1.07 to 5.68 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Median PS Value for a Semiconductors company?
The median Median PS Value among Semiconductors companies is 1.23, based on 539 companies in the industry. Companies in the top quartile (top 25%) have a Median PS Value significantly above this median, while those in the bottom quartile fall well below. However, Median PS Value 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 Median PS Value mean?
A high Median PS Value can signal that a stock is expensive relative to its fundamentals. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on LandMark Optoelectronics and its competitors. For the Semiconductors industry, the median Median PS Value is 1.23 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LandMark Optoelectronics's current Median PS Value is NT$286.87, which is 14172% above median its own 10-year median of 2.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LandMark Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, LandMark Optoelectronics (ROCO:3081) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$754.75, compared to a current price of NT$1,630.00 — trading 116% above its estimated fair value. The current Median PS Value is NT$286.87, which is 14172% above median its 10-year median of 2.01. LandMark Optoelectronics' overall GF Score™ is 66/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Median PS Value calculated?
Median PS Value is calculated from a company's financial statements. For LandMark Optoelectronics (ROCO:3081), the current Median PS Value is NT$286.87 as of Aug. 01, 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 LandMark Optoelectronics (ROCO:3081) Overvalued in 2026?
Based on GuruFocus' analysis, LandMark Optoelectronics stock appears to be overvalued.
The current stock price of NT$1,630.00 is trading 116% above its estimated GF Value™ of NT$754.75.
GuruFocus considers LandMark Optoelectronics to be Significantly Overvalued.
Key valuation signals for ROCO:3081:
Median PS Value: NT$286.87 (14172% above median its 10-year median of 2.01)
GF Value™: NT$754.75 vs. price of NT$1,630.00 (116% above fair value)
No single metric tells the full story. See the ROCO:3081 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
LandMark Optoelectronics Corp is active in the semiconductor industry as an epi-wafer supplier. It is engaged in the manufacturing, processing, and selling of optical semiconductors, laser diodes, and high brightness InAlGaP/AlGalnAs. The company operates in a single reportable segment, which is single product manufacturing and selling of wafers. Some of its products are DFB Epiwafer, EML Epiwafer, APD Epiwafer, FP Epiwafer, and PIN PD Epiwafer. Its geographical segments are United States, Mainland China, Taiwan, and others.
66GF Score
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