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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.
Unicon Optical CoROCO:4150 -1.77%46 Median PS Value is NT$7.93 as of Jul. 15, 2026, which is 100% below its 10-year median of 0.98. GuruFocus rates ROCO:4150 with a GF Score™ of 46/100 and a GF Value™ of NT$8.20 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 336 Medical Devices & Instruments companies, Unicon Optical Co ranks better than 60.42% 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 Unicon Optical Co's Median PS Value or its related term are showing as below:
ROCO:4150'
s Price-to-Median-PS-Value Range Over the Past 10 Years
Min: 0.63 Med: 0.98 Max: 1.26
Current: 0.63
During the past 13 years, the highest Price to Median PS Value of Unicon Optical Co was 1.26. The lowest was 0.63. And the median was 0.98.
ROCO:4150's Price-to-Median-PS-Value is ranked better than 60.42% of 336
companies
in the Medical Devices & Instruments industry
Industry Median: 0.71
vs ROCO:4150: 0.63
Unicon Optical Co (ROCO:4150) 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.
Unicon Optical Co's Price to Median PS Value for today is calculated as
Price to Median PS Value
=
Share Price
/
Median PS Value
=
5.00
/
7.93
=
0.63
* 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.
Unicon Optical Co Median PS Value Related Terms
Unicon Optical Co Median PS Value Historical Data
* Premium members only.
The historical data trend for Unicon Optical Co's Median PS Value 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.
ROCO:4150 vs ISRG, BDX, MDLN: Median PS Value Comparison
For the Medical Instruments & Supplies subindustry, Unicon Optical Co'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.
Unicon Optical Co Price-to-Median-PS-Value vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Unicon Optical Co's Price-to-Median-PS-Value distribution charts can be found below:
* The bar in red indicates where Unicon Optical Co's Price-to-Median-PS-Value falls into.
10-Year Median PS Ratio is 1.8209.
For company reported semi-annually, GuruFocus uses latest annual data as the TTM data. Unicon Optical Co's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was NT$4.355.
* 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.
Unicon Optical Co (ROCO:4150) has a Median PS Value of NT$7.93 as of Jul. 15, 2026. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on Unicon Optical Co and its competitors. This is 709% above median its historical median of 0.98. Over the past decade, Unicon Optical Co's Median PS Value has ranged from 0.63 to 1.26. According to the industry distribution chart, Unicon Optical Co ranks #133 out of 336 companies in the Medical Devices & Instruments industry, placing it in the top 39.6%.
Is Unicon Optical Co's Median PS Value too high?
Unicon Optical Co's current Median PS Value of NT$7.93 is 709% above median its 10-year median of 0.98. Over the past 10 years, this metric has ranged from a low of 0.63 to a high of 1.26. Based on the distribution chart, Unicon Optical Co ranks #133 out of 336 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, Unicon Optical Co has a GF Score™ of 46/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Unicon Optical Co's Median PS Value compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Unicon Optical Co ranks #133 out of 336 companies for Median PS Value. This puts Unicon Optical Co in the upper half of its industry. The industry median Median PS Value is 0.71. Historically, Unicon Optical Co's own Median PS Value has ranged from 0.63 to 1.26 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 Medical Devices & Instruments company?
The median Median PS Value among Medical Devices & Instruments companies is 0.71, based on 336 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 Unicon Optical Co and its competitors. For the Medical Devices & Instruments industry, the median Median PS Value is 0.71 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Unicon Optical Co's current Median PS Value is NT$7.93, which is 709% above median its own 10-year median of 0.98. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Unicon Optical Co stock overvalued right now?
Based on GuruFocus' analysis, Unicon Optical Co (ROCO:4150) is currently considered Possible Value Trap. The stock's GF Value™ is NT$8.20, compared to a current price of NT$5.00 — trading 39% below its estimated fair value. The current Median PS Value is NT$7.93, which is 709% above median its 10-year median of 0.98. Unicon Optical Co's overall GF Score™ is 46/100 with 6 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 Unicon Optical Co (ROCO:4150), the current Median PS Value is NT$7.93 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 Unicon Optical Co (ROCO:4150) Overvalued in 2026?
Based on GuruFocus' analysis, Unicon Optical Co stock appears to be undervalued.
The current stock price of NT$5.00 is trading 39% below its estimated GF Value™ of NT$8.20.
GuruFocus considers Unicon Optical Co to be Possible Value Trap.
Key valuation signals for ROCO:4150:
Median PS Value: NT$7.93 (709% above median its 10-year median of 0.98)
GF Value™: NT$8.20 vs. price of NT$5.00 (39% below fair value)
No single metric tells the full story. See the ROCO:4150 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Unicon Optical Co Ltd is engaged in the manufacture and sale of a contact lens in Taiwan and internationally. It offers disposable contact lens, spherical contact lens, color, and dual color lenses.
46GF Score
Get the complete analysis for ROCO:4150
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