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AnnexonANNX +2.94%34 FCF Margin % is 0.00% as of Mar. 2026. GuruFocus rates ANNX with a GF Score™ of 34/100. The stock has 2 warning signs investors should review. Among 952 Biotechnology companies, Annexon ranks worse than 105041.91% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Annexon's Free Cash Flow for the
three
months ended in Mar. 2026 was $-46.80 Mil. Annexon's Revenue for the
three
months ended in Mar. 2026 was $0.00 Mil. Therefore, Annexon's FCF Margin % for the quarter that ended in Mar. 2026 was 0.00%.
The historical data trend for Annexon'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.
For the Biotechnology subindustry, Annexon'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.
Annexon FCF Margin % vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Annexon's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Annexon's FCF Margin % falls into.
* 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.
Annexon (ANNX) 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 Annexon and its competitors. According to the industry distribution chart, Annexon ranks #999999 out of 952 companies in the Biotechnology industry.
Is Annexon's FCF Margin % too high?
Annexon's current FCF Margin % is 0.00%. Based on the distribution chart, Annexon ranks #999999 out of 952 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Annexon has a GF Score™ of 34/100, reflecting its overall financial health beyond just this single metric.
How does Annexon's FCF Margin % compare to ABUS and TBPH?
According to the Biotechnology industry distribution chart, Annexon ranks #999999 out of 952 companies for FCF Margin %. This places Annexon 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 Annexon and its competitors. Annexon'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 Annexon stock overvalued right now?
Annexon (ANNX) has a current FCF Margin % of 0.00%. The current FCF Margin % is 0.00%. Annexon's overall GF Score™ is 34/100 with 2 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 Annexon (ANNX), 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.
Annexon Inc is a clinical-stage biopharmaceutical company developing a pipeline of novel therapies for patients with classical complement-mediated disorders of the body, brain, and eye. Its pipeline is based on its platform technology addressing well-researched classical complement-mediated autoimmune and neurodegenerative disease processes, both of which are triggered by aberrant activation of C1q. Its pipeline of product candidates is designed to block the activity of C1q and the entire classical complement pathway in a broad set of complement-mediated diseases. Its product candidates are ANX005, for autoimmune & neurodegenerative disorders; ANX007, for neurodegenerative ophthalmic disorders; ANX1502, for Oral small molecule; and ANX009, for systemic autoimmune diseases.
34GF Score
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