KRRO (Korro Bio) FCF Margin %: 0.00% (As of Mar. 2026)


KRRO Korro Bio Inc KRRO
6 GF Score
Price $12.17
! 4 Warning Signs
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What is Korro Bio FCF Margin %?

Korro Bio KRRO -11.68% 6 FCF Margin % is 0.00% as of Mar. 2026. GuruFocus rates KRRO with a GF Score™ of 6/100. The stock has 4 warning signs investors should review. Among 960 Biotechnology companies, Korro Bio ranks worse than 83.75% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Korro Bio's Free Cash Flow for the three months ended in Mar. 2026 was $-16.10 Mil. Korro Bio's Revenue for the three months ended in Mar. 2026 was $0.00 Mil. Therefore, Korro Bio's FCF Margin % for the quarter that ended in Mar. 2026 was 0.00%.

As of today, Korro Bio's current FCF Yield % is -40.22%.

The historical rank and industry rank for Korro Bio's FCF Margin % or its related term are showing as below:

KRRO' s FCF Margin % Range Over the Past 10 Years
Min: -3433.55   Med: -2335.36   Max: -1237.16
Current: -1837.66

During the past 5 years, the highest FCF Margin % of Korro Bio was -1237.16%. The lowest was -3433.55%. And the median was -2335.36%.

KRRO's FCF Margin % is ranked worse than
83.75% of 960 companies
in the Biotechnology industry
Industry Median: -85.21 vs KRRO: -1837.66

Korro Bio FCF Margin % Related Terms

Korro Bio FCF Margin % Historical Data

* Premium members only.

The historical data trend for Korro Bio's FCF Margin % 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.

Korro Bio FCF Margin % Chart

Korro Bio Annual Data
Trend Dec21 Dec22 Dec23 Dec24 Dec25
FCF Margin %
0.00 0.00 0.00 -3,433.55 -1,237.16

Korro Bio Quarterly Data
Dec21 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
FCF Margin % 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 -963.57 -1,326.58 -1,592.11 -1,376.63 0.00

KRRO vs TNYA, ENLV, TNXP: FCF Margin % Comparison

For the Biotechnology subindustry, Korro Bio's FCF Margin %, along with its competitors' market caps and FCF Margin % 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.

Korro Bio FCF Margin % vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Korro Bio's FCF Margin % distribution charts can be found below:

* The bar in red indicates where Korro Bio's FCF Margin % falls into.


KRRO
6GF Score
Korro Bio Inc KRRO
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Korro Bio FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

Korro Bio's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-79.079/6.392
=-1,237.16 %

Korro Bio's FCF Margin for the quarter that ended in Mar. 2026 is calculated as

FCF Margin=Free Cash Flow (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=-16.095/0
= %

* 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 FCF Margin % →
What does a FCF Margin % of 0.00% mean?
Korro Bio (KRRO) has a FCF Margin % of 0.00% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Korro Bio and its competitors. According to the industry distribution chart, Korro Bio ranks #804 out of 960 companies in the Biotechnology industry, placing it in the top 83.7%.
Is Korro Bio's FCF Margin % too high?
Korro Bio's current FCF Margin % is 0.00%. Based on the distribution chart, Korro Bio ranks #804 out of 960 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. 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 FCF Margin % compare to TNYA and ENLV?
According to the Biotechnology industry distribution chart, Korro Bio ranks #804 out of 960 companies for FCF Margin %. This places Korro Bio in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Biotechnology company?
A good FCF Margin % depends on the Biotechnology industry context. However, FCF Margin % 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Korro Bio and its competitors. Korro Bio's current FCF Margin % is 0.00%. 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 FCF Margin % of 0.00%. The current FCF Margin % is 0.00%. 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 FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Korro Bio (KRRO), the current FCF Margin % is 0.00% 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 Business Description

Address 60 First Street, 2nd Floor, Suite 250, Cambridge, MA, USA, 02141
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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