Koss (KOSS) ROC (Joel Greenblatt) %: -24.58% (As of Mar. 2026)


KOSS Koss Corp KOSS
60 GF Score
Price $3.98
GF Value $4.38
Valuation Fairly Valued
! 2 Warning Signs
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What is Koss ROC (Joel Greenblatt) %?

Koss KOSS +0.63% 60 ROC (Joel Greenblatt) % is -24.58% as of Mar. 2026. GuruFocus rates KOSS with a GF Score™ of 60/100 and a GF Value™ of $4.38 (Fairly Valued). The stock has 2 warning signs investors should review. Among 2,493 Hardware companies, Koss ranks worse than 84.56% on this metric.

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Koss's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was -24.58%.

The historical rank and industry rank for Koss's ROC (Joel Greenblatt) % or its related term are showing as below:

KOSS' s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -209.76   Med: -4.18   Max: 24.46
Current: -22.28

During the past 13 years, Koss's highest ROC (Joel Greenblatt) % was 24.46%. The lowest was -209.76%. And the median was -4.18%.

KOSS's ROC (Joel Greenblatt) % is ranked worse than
84.56% of 2493 companies
in the Hardware industry
Industry Median: 10.35 vs KOSS: -22.28

Koss's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.


Koss  (NAS:KOSS) ROC (Joel Greenblatt) % Explanation

The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.

Joel Greenblatt uses his definition of Return on Capital and Earnings Yield (Joel Greenblatt) % to rank companies.


Koss ROC (Joel Greenblatt) % Related Terms


Koss ROC (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Koss's ROC (Joel Greenblatt) % 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.

Koss ROC (Joel Greenblatt) % Chart

Koss Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
ROC (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -3.85 7.67 -209.76 -18.42 -18.52

Koss Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
ROC (Joel Greenblatt) % 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 -13.46 -49.34 11.27 -25.93 -24.58

KOSS vs AXIL, FOXX, UEIC: ROC (Joel Greenblatt) % Comparison

For the Consumer Electronics subindustry, Koss's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.


Koss ROC (Joel Greenblatt) % vs Hardware Industry

For the Hardware industry and Technology sector, Koss's ROC (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Koss's ROC (Joel Greenblatt) % falls into.


KOSS
60GF Score
Koss Corp KOSS
ROC (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Koss ROC (Joel Greenblatt) % Calculation

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:

ROC (Joel Greenblatt) %=EBIT/Average of (Net fixed Assets + Net Working Capital)

EBIT stands for Earnings Before Interest and Taxes.

Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.

GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(1.01 + 4.838 + 0.398) - (1.186 + 0.249 + -2.2204460492503E-16)
=4.811

Working Capital(Q: Mar. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(1.048 + 4.76 + 0.465) - (1.132 + 0.242 + 2.2204460492503E-16)
=4.899

When net working capital is negative, 0 is used.

So ROC (Joel Greenblatt) % of Koss for the quarter that ended in Mar. 2026 can be restated as:

ROC (Joel Greenblatt) %(Q: Mar. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2025  Q: Mar. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-2.176/( ( (4.064 + max(4.811, 0)) + (3.929 + max(4.899, 0)) )/ 2 )
=-2.176/( ( 8.875 + 8.828 )/ 2 )
=-2.176/8.8515
=-24.58 %

Note: The EBIT data used here is four times the quarterly (Mar. 2026) EBIT 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.

What does a ROC (Joel Greenblatt) % of -24.58% mean?
Koss (KOSS) has a ROC (Joel Greenblatt) % of -24.58% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Koss and its competitors. According to the industry distribution chart, Koss ranks #2108 out of 2493 companies in the Hardware industry, placing it in the top 84.6%.
Is Koss' ROC (Joel Greenblatt) % too high?
Koss' current ROC (Joel Greenblatt) % is -24.58%. Based on the distribution chart, Koss ranks #2108 out of 2493 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Koss has a GF Score™ of 60/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Koss' ROC (Joel Greenblatt) % compare to AXIL and FOXX?
According to the Hardware industry distribution chart, Koss ranks #2108 out of 2493 companies for ROC (Joel Greenblatt) %. This places Koss in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 10.35. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC (Joel Greenblatt) % for a Hardware company?
The median ROC (Joel Greenblatt) % among Hardware companies is 10.35, based on 2,493 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Koss and its competitors. For the Hardware industry, the median ROC (Joel Greenblatt) % is 10.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Koss's current ROC (Joel Greenblatt) % is -24.58%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Koss stock overvalued right now?
Based on GuruFocus' analysis, Koss (KOSS) is currently considered Fairly Valued. The stock's GF Value™ is $4.38, compared to a current price of $3.98 — trading 9.1% below its estimated fair value. The current ROC (Joel Greenblatt) % is -24.58%. Koss' overall GF Score™ is 60/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Koss (KOSS), the current ROC (Joel Greenblatt) % is -24.58% as of Mar. 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 Koss (KOSS) Overvalued in 2026?

Based on GuruFocus' analysis, Koss stock appears to be undervalued. The current stock price of $3.98 is trading 9.1% below its estimated GF Value™ of $4.38. GuruFocus considers Koss to be Fairly Valued.

Key valuation signals for KOSS:

  • ROC (Joel Greenblatt) %: -24.58%
  • GF Value™: $4.38 vs. price of $3.98 (9.1% below fair value)
  • GF Score™: 60/100 with 2 warning signs

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


Koss Business Description

Address 4129 North Port Washington Avenue, Milwaukee, WI, USA, 53212
Koss Corp is engaged in the design, manufacture, and sale of stereo headphones and related accessory products. It operates in the audio/video industry segment of the home entertainment industry. The company markets a line of headphones, wireless Bluetooth headphones, wireless Bluetooth speakers, computer headsets, telecommunications headsets, and active noise-canceling headphones. The majority of the firm's revenue is derived from sales of stereo headphones. The Company also sells products to distributors for resale to school systems, and directly to other manufacturers for inclusion with their own products.
60GF Score

Get the complete analysis for KOSS

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

$3.98
Price
$4.38
GF Value