ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Korro Bio's annualized return on capital (ROC %) for the quarter that ended in Mar. 2026 was -153.26%.
As of today (2026-06-25), Korro Bio's WACC % is 8.52%. Korro Bio's ROC % is -116.41% (calculated using TTM income statement data).
Korro Bio earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Korro Bio (NAS:KRRO) 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, Korro Bio's WACC % is 8.52%. Korro Bio's ROC % is -116.41% (calculated using TTM income statement data).
Korro Bio 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.
Korro Bio ROC % Related Terms
Korro Bio ROC % Historical Data
* Premium members only.
The historical data trend for Korro Bio'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.
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.
Korro Bio (KRRO) has a ROC % of -153.26% as of Mar. 2026. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Korro Bio and its competitors.
Is Korro Bio's ROC % too high?
Korro Bio's current ROC % is -153.26%. Overall, Korro Bio has a GF Score™ of 6/100, reflecting its overall financial health beyond just this single metric.
How does Korro Bio's ROC % compare to TNYA and ENLV?
Korro Bio's ROC % of -153.26% 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 Korro Bio and its competitors. Korro Bio's current ROC % is -153.26%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Korro Bio stock overvalued right now?
Korro Bio (KRRO) has a current ROC % of -153.26%. The current ROC % is -153.26%. Korro Bio's overall GF Score™ is 6/100 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 Korro Bio (KRRO), the current ROC % is -153.26% 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.
Korro Bio Inc is a biopharmaceutical company with a mission to discover, develop, and commercialize a new class of genetic medicines based on editing RNA, enabling the treatment of both rare and highly prevalent diseases. It is generating a portfolio of differentiated programs that are designed to harness the body's natural RNA editing process to effect a precise yet transient single base edit. By editing RNA instead of DNA, Korro Bio is expanding the reach of genetic medicines by delivering additional precision and tunability. The company operates and manages its business as one reportable segment and one operating segment, which is the business of discovering, developing and commercializing therapies derived from or incorporating its RNA-editing technology.
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