Essex Bio-Technology (HKSE:01061) ROC %: 9.68% (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
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.

HKSE:01061 Essex Bio-Technology Ltd HKSE:01061
86 GF Score
Price HK$2.29
GF Value HK$3.13
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Essex Bio-Technology ROC %?

Essex Bio-Technology HKSE:01061 +0.88% 86 ROC % is 9.68% as of Jun. 2026. GuruFocus rates HKSE:01061 with a GF Score™ of 86/100 and a GF Value™ of HK$3.13 (Modestly Undervalued). The stock has 3 warning signs investors should review.

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Essex Bio-Technology's annualized return on capital (ROC %) for the quarter that ended in Jun. 2026 was 9.68%.

As of today (2026-08-27), Essex Bio-Technology's WACC % is 6.10%. Essex Bio-Technology's ROC % is 12.33% (calculated using TTM income statement data). Essex Bio-Technology generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.


Essex Bio-Technology  (HKSE:01061) ROC % Explanation

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.

There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.

Why is ROC % important?

Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.

As of today, Essex Bio-Technology's WACC % is 6.10%. Essex Bio-Technology's ROC % is 12.33% (calculated using TTM income statement data). Essex Bio-Technology generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.


Be Aware

Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.


Essex Bio-Technology ROC % Related Terms


Essex Bio-Technology ROC % Historical Data

* Premium members only.

The historical data trend for Essex Bio-Technology's ROC % 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.

Essex Bio-Technology ROC % Chart

Essex Bio-Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 23.54 14.44 15.05 16.11 16.71

Essex Bio-Technology Semi-Annual Data
Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25 Jun26
ROC % 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 16.58 15.50 17.90 15.13 9.68
HKSE:01061
86GF Score
Essex Bio-Technology Ltd HKSE:01061
ROC % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Essex Bio-Technology ROC % Calculation

Essex Bio-Technology's annualized Return on Capital (ROC %) for the fiscal year that ended in Dec. 2025 is calculated as:

ROC % (A: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (A: Dec. 2024 ) + Invested Capital (A: Dec. 2025 ))/ count )
=413.453 * ( 1 - 23.29% )/( (1786.392 + 2008.814)/ 2 )
=317.1597963/1897.603
=16.71 %

where

Invested Capital(A: Dec. 2024 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=2983.045 - 635.914 - ( 560.739 - max(0, 708.978 - 1283.302+560.739))
=1786.392

Invested Capital(A: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=3490.761 - 697.805 - ( 784.142 - max(0, 766.905 - 1620.125+784.142))
=2008.814

Essex Bio-Technology's annualized Return on Capital (ROC %) for the quarter that ended in Jun. 2026 is calculated as:

ROC % (Q: Jun. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Jun. 2026 ))/ count )
=267.438 * ( 1 - 25.17% )/( (2008.814 + 2124.16)/ 2 )
=200.1238554/2066.487
=9.68 %

where

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=3490.761 - 697.805 - ( 784.142 - max(0, 766.905 - 1620.125+784.142))
=2008.814

Invested Capital(Q: Jun. 2026 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=3615.981 - 684.089 - ( 807.732 - max(0, 784.079 - 1689.281+807.732))
=2124.16

Note: The Operating Income data used here is two times the semi-annual (Jun. 2026) data. The tax rate is limited to between 0% and 100%.

* 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.

Frequently Asked Questions Learn more about ROC % →
What does a ROC % of 9.68% mean?
Essex Bio-Technology (HKSE:01061) has a ROC % of 9.68% as of Jun. 2026. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Essex Bio-Technology and its competitors.
Is Essex Bio-Technology's ROC % too high?
Essex Bio-Technology's current ROC % is 9.68%. The Drug Manufacturers industry median ROC % is 4.54. Essex Bio-Technology's value of 9.68% is 113.5% above this industry median. Overall, Essex Bio-Technology has a GF Score™ of 86/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Essex Bio-Technology's ROC % compare to ZTS?
Essex Bio-Technology's ROC % of 9.68% can be compared against companies in the Drug Manufacturers industry. The industry median ROC % is 4.54. Essex Bio-Technology's value of 9.68% is 113.5% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for a Drug Manufacturers company?
The median ROC % among Drug Manufacturers companies is 4.54, based on 994 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Essex Bio-Technology's current ROC % of 9.68% is 113.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Essex Bio-Technology and its competitors. For the Drug Manufacturers industry, the median ROC % is 4.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Essex Bio-Technology's current ROC % is 9.68%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Essex Bio-Technology stock overvalued right now?
Based on GuruFocus' analysis, Essex Bio-Technology (HKSE:01061) is currently considered Modestly Undervalued. The stock's GF Value™ is HK$3.13, compared to a current price of HK$2.29 — trading 26.8% below its estimated fair value. The current ROC % is 9.68% and 113.5% above the Drug Manufacturers industry median of 4.54. Essex Bio-Technology's overall GF Score™ is 86/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC % calculated?
ROC % is calculated from a company's financial statements. For Essex Bio-Technology (HKSE:01061), the current ROC % is 9.68% as of Jun. 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 Essex Bio-Technology (HKSE:01061) Overvalued in 2026?

Based on GuruFocus' analysis, Essex Bio-Technology stock appears to be undervalued. The current stock price of HK$2.29 is trading 26.8% below its estimated GF Value™ of HK$3.13. GuruFocus considers Essex Bio-Technology to be Modestly Undervalued.

Key valuation signals for HKSE:01061:

  • ROC %: 9.68%
  • GF Value™: HK$3.13 vs. price of HK$2.29 (26.8% below fair value)
  • GF Score™: 86/100 with 3 warning signs
  • Industry Position: 113.5% above the Drug Manufacturers median

No single metric tells the full story. See the HKSE:01061 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Essex Bio-Technology Business Description

Address No. 88, Keji 6th Road, Hi-Tech Zone, Guangdong, Zhuhai, CHN
Essex Bio-Technology Ltd is principally engaged in investment holding and development, manufacture, and sale of biologic drugs in the People's Republic of China. The company is made up of segments of Ophthalmology products and Surgical products. Its products under Ophthalmology include the Beifushu series, Tobramycin Eye Drops, Levofloxacin Eye Drops, and Sodium Hyaluronate Eye Drops. The products under Surgical include the Beifuji series, Carisolv dental caries removal gel, and mouthwash. The majority of the group's revenue comes from the PRC, also operates in Hong Kong and other countries.
86GF Score

Get the complete analysis for HKSE:01061

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

HK$2.29
Price
HK$3.13
GF Value