ISCO (International Stem Cell) ROC %: -14.50% (As of Mar. 2026)


ISCO International Stem Cell Corp ISCO
28 GF Score
Price $0.18
GF Value $0.13
Valuation Significantly Overvalued
! 4 Warning Signs
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What is International Stem Cell ROC %?

International Stem Cell ISCO +4.76% 28 ROC % is -14.50% as of Mar. 2026. GuruFocus rates ISCO with a GF Score™ of 28/100 and a GF Value™ of $0.13 (Significantly Overvalued). The stock has 4 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 %. International Stem Cell's annualized return on capital (ROC %) for the quarter that ended in Mar. 2026 was -14.50%.

As of today (2026-06-25), International Stem Cell's WACC % is 3.05%. International Stem Cell's ROC % is -4.42% (calculated using TTM income statement data). International Stem Cell earns returns that do not match up to its cost of capital. It will destroy value as it grows.


International Stem Cell  (OTCPK:ISCO) 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, International Stem Cell's WACC % is 3.05%. International Stem Cell's ROC % is -4.42% (calculated using TTM income statement data). International Stem Cell earns returns that do not match up to its cost of capital. It will destroy value as it grows.


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.


International Stem Cell ROC % Related Terms


International Stem Cell ROC % Historical Data

* Premium members only.

The historical data trend for International Stem Cell'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.

International Stem Cell ROC % Chart

International Stem Cell 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 -39.06 -3.06 -11.21 -1.19 -4.86

International Stem Cell Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 -15.07 11.69 6.78 -23.02 -14.50
ISCO
28GF Score
International Stem Cell Corp ISCO
ROC % is just one metric. See GF Score™, valuation, warning signs, and more.
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International Stem Cell ROC % Calculation

International Stem Cell'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 )
=-0.267 * ( 1 - 0% )/( (5.588 + 5.391)/ 2 )
=-0.267/5.4895
=-4.86 %

where

International Stem Cell's annualized Return on Capital (ROC %) for the quarter that ended in Mar. 2026 is calculated as:

ROC % (Q: Mar. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Mar. 2026 ))/ count )
=-0.76 * ( 1 - 0% )/( (5.391 + 5.09)/ 2 )
=-0.76/5.2405
=-14.50 %

where

Note: The Operating Income data used here is four times the quarterly (Mar. 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 -14.50% mean?
International Stem Cell (ISCO) has a ROC % of -14.50% as of Mar. 2026. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on International Stem Cell and its competitors.
Is International Stem Cell's ROC % too high?
International Stem Cell's current ROC % is -14.50%. Overall, International Stem Cell has a GF Score™ of 28/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does International Stem Cell's ROC % compare to ONCO and VRAX?
International Stem Cell's ROC % of -14.50% can be compared against companies in the Biotechnology industry. 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 Biotechnology company?
A good ROC % depends on the Biotechnology industry context. However, ROC % 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 % 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 International Stem Cell and its competitors. International Stem Cell's current ROC % is -14.50%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Stem Cell stock overvalued right now?
Based on GuruFocus' analysis, International Stem Cell (ISCO) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.13, compared to a current price of $0.18 — trading 37% above its estimated fair value. The current ROC % is -14.50%. International Stem Cell's overall GF Score™ is 28/100 with 4 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 International Stem Cell (ISCO), the current ROC % is -14.50% 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 International Stem Cell (ISCO) Overvalued in 2026?

Based on GuruFocus' analysis, International Stem Cell stock appears to be overvalued. The current stock price of $0.18 is trading 37% above its estimated GF Value™ of $0.13. GuruFocus considers International Stem Cell to be Significantly Overvalued.

Key valuation signals for ISCO:

  • ROC %: -14.50%
  • GF Value™: $0.13 vs. price of $0.18 (37% above fair value)
  • GF Score™: 28/100 with 4 warning signs

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


International Stem Cell Business Description

Address 9745 Businesspark Avenue, San Diego, CA, USA, 92131
International Stem Cell Corp is a clinical-stage biotechnology company. It is focused on therapeutic and biomedical product development with multiple long-term therapeutic opportunities. The company develops different cell types from its stem cells that may result in therapeutic products. The clinical applications of the company include neural stem cells for the treatment of Parkinson's disease and other central nervous system disorders; Liver cells, which are used to treat a variety of congenital and acquired liver diseases; and retinal cells and three-dimensional eye structures. The company operates in three segments, the therapeutic market, the biomedical market, and the anti-aging market. The Biomedical products business segment accounts for the majority of revenue.
28GF Score

Get the complete analysis for ISCO

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

$0.18
Price
$0.13
GF Value