Sionna TherapeuticsSION +5.64%12 EV-to-FCF is -24.65 as of Jul. 04, 2026. GuruFocus rates SION with a GF Score™ of 12/100. The stock has 3 warning signs investors should review. Among 332 Biotechnology companies, Sionna Therapeutics ranks worse than 301204.52% on this metric.
EV-to-FCF is calculated as enterprise value divided by its free cash flow. As of today, Sionna Therapeutics's Enterprise Value is $1,778.39 Mil.
Sionna Therapeutics's Free Cash Flow for the trailing twelve months (TTM) ended in Mar. 2026 was $-72.14 Mil. Therefore, Sionna Therapeutics's EV-to-FCF for today is -24.65.
The historical rank and industry rank for Sionna Therapeutics's EV-to-FCF or its related term are showing as below:
SION'
s EV-to-FCF Range Over the Past 10 Years
Min: -24.65 Med: 0 Max: 0
Current: -24.65
SION's EV-to-FCF is ranked worse than 100% of 332
companies
in the Biotechnology industry
Industry Median: 16.26
vs SION: -24.65
EV-to-FCF is a valuation multiple that allows analysts and investors to compare stocks, preferably in the same sector or industry. This important multiple is often used in conjunction with, or as an alternative to, the PE Ratio (TTM) to determine the fair market value of a company.
EV-to-FCF is a valuation multiple that allows analysts and investors to compare stocks, preferably in the same sector or industry. This important multiple is often used in conjunction with, or as an alternative to, the PE Ratio (TTM) to determine the fair market value of a company.
Sionna Therapeutics's PE Ratio (TTM) for today is calculated as:
Sionna Therapeutics's share price for today is $43.99.
Sionna Therapeutics's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-1.930.
* 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.
Enterprise Value is used because it is a more complete measure in reflecting how much an investor pays when buying a company. Free Cash Flow is an important financial metric because it represents the actual amount of cash at a company's disposal. Companies with a low EV-to-FCF ratio, combined with a strong balance sheet are generally considered as undervalued.
Sionna Therapeutics EV-to-FCF Related Terms
Sionna Therapeutics EV-to-FCF Historical Data
* Premium members only.
The historical data trend for Sionna Therapeutics's EV-to-FCF 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, Sionna Therapeutics's EV-to-FCF, along with its competitors' market caps and EV-to-FCF 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.
Sionna Therapeutics EV-to-FCF vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Sionna Therapeutics's EV-to-FCF distribution charts can be found below:
* The bar in red indicates where Sionna Therapeutics's EV-to-FCF falls into.
Sionna Therapeutics's current Enterprise Value is $1,778.39 Mil.
Sionna Therapeutics's Free Cash Flow for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $-72.14 Mil.
* 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.
Sionna Therapeutics (SION) has a EV-to-FCF of -24.65 as of Jul. 04, 2026. EV to FCF ratio is the company's enterprise value divided by free cash flow. View historical data on Sionna Therapeutics and its competitors. According to the industry distribution chart, Sionna Therapeutics ranks #999999 out of 332 companies in the Biotechnology industry.
Is Sionna Therapeutics' EV-to-FCF too high?
Sionna Therapeutics' current EV-to-FCF is -24.65. Based on the distribution chart, Sionna Therapeutics ranks #999999 out of 332 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Sionna Therapeutics has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does Sionna Therapeutics' EV-to-FCF compare to TYRA and RAPP?
According to the Biotechnology industry distribution chart, Sionna Therapeutics ranks #999999 out of 332 companies for EV-to-FCF. This places Sionna Therapeutics in the lower half of its industry. The industry median EV-to-FCF is 16.26. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good EV-to-FCF for a Biotechnology company?
The median EV-to-FCF among Biotechnology companies is 16.26, based on 332 companies in the industry. Companies in the top quartile (top 25%) have a EV-to-FCF significantly above this median, while those in the bottom quartile fall well below. However, EV-to-FCF 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 EV-to-FCF mean?
A high EV-to-FCF can signal that a stock is expensive relative to its fundamentals. EV to FCF ratio is the company's enterprise value divided by free cash flow. View historical data on Sionna Therapeutics and its competitors. For the Biotechnology industry, the median EV-to-FCF is 16.26 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sionna Therapeutics's current EV-to-FCF is -24.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sionna Therapeutics stock overvalued right now?
Sionna Therapeutics (SION) has a current EV-to-FCF of -24.65. The current EV-to-FCF is -24.65. Sionna Therapeutics' overall GF Score™ is 12/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is EV-to-FCF calculated?
EV-to-FCF is calculated from a company's financial statements. For Sionna Therapeutics (SION), the current EV-to-FCF is -24.65 as of Jul. 04, 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.
Sionna Therapeutics Inc is a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF) patients by developing novel medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein to deliver clinically meaningful benefits to CF patients. CF is a progressive and life-threatening genetic disease caused by inherited mutations in the CFTR gene, which heads to insufficient CFTR function. The Company is managed as one operating segment focused on the research and development of cystic fibrosis therapies.
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