SION (Sionna Therapeutics) Buyback Yield %: 0.02 (As of Jul. 04, 2026)


SION Sionna Therapeutics Inc SION
12 GF Score
Price $43.99
! 3 Warning Signs
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What is Sionna Therapeutics Buyback Yield %?

Sionna Therapeutics SION +5.64% 12 Buyback Yield % is 0.02 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 744 Biotechnology companies, Sionna Therapeutics ranks better than 87.23% on this metric.

Buyback yield is the net repurchase of shares outstanding over the market capital of the company. It is a measure of shareholder return.

Sionna Therapeutics's current buyback yield was 0.02%.

Sionna Therapeutics Buyback Yield % Historical Data

* Premium members only.

The historical data trend for Sionna Therapeutics's Buyback Yield % 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.

Sionna Therapeutics Buyback Yield % Chart

Sionna Therapeutics Annual Data
Trend Dec22 Dec23 Dec24 Dec25
Buyback Yield %
0.00 0.00 0.00 -10.98

Sionna Therapeutics Quarterly Data
Dec22 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Buyback Yield % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only -43.88 -26.39 -15.45 -10.98 0.02

SION vs TYRA, RAPP, IOVA: Buyback Yield % Comparison

For the Biotechnology subindustry, Sionna Therapeutics's Buyback Yield %, along with its competitors' market caps and Buyback Yield % 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 Buyback Yield % vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Sionna Therapeutics's Buyback Yield % distribution charts can be found below:

* The bar in red indicates where Sionna Therapeutics's Buyback Yield % falls into.


SION
12GF Score
Sionna Therapeutics Inc SION
Buyback Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
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Sionna Therapeutics Buyback Yield % Calculation

Buyback yield is a measure of shareholder return.

Sionna Therapeutics's Buyback Yield for the fiscal year that ended in Dec. 2025 is calculated as

Buyback Yield=Net Issuance of Stock / Market Cap
=- (Repurchase of Stock + Issuance of Stock) / Market Cap
=- (0 + 202.071) / 1839.94536
=-10.98%

Sionna Therapeutics's annualized Buyback Yield for the quarter that ended in Mar. 2026 is calculated as

Buyback Yield=Net Issuance of Stock(TTM) / Market Cap
=- (Repurchase of Stock + Issuance of Stock) (TTM)** / Market Cap
=- (0 + -0.318) / 1807.09684
=0.02%

* 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.

** If the quarter corresponds to the year-end period, we will use the annual Repurchase of Stock and Issuance of Stock data .

Frequently Asked Questions Learn more about Buyback Yield % →
What does a Buyback Yield % of 0.02 mean?
Sionna Therapeutics (SION) has a Buyback Yield % of 0.02 as of Jul. 04, 2026. Share buyback yield equals the net issuance of stock divided by market cap. View historical data on Sionna Therapeutics and its competitors. According to the industry distribution chart, Sionna Therapeutics ranks #95 out of 744 companies in the Biotechnology industry, placing it in the top 12.8%.
Is Sionna Therapeutics' Buyback Yield % too high?
Sionna Therapeutics' current Buyback Yield % is 0.02. Based on the distribution chart, Sionna Therapeutics ranks #95 out of 744 companies in the Biotechnology industry, which is in the top quartile — a strong position 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' Buyback Yield % compare to TYRA and RAPP?
According to the Biotechnology industry distribution chart, Sionna Therapeutics ranks #95 out of 744 companies for Buyback Yield %. This places Sionna Therapeutics in the top 13% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Buyback Yield % for a Biotechnology company?
A good Buyback Yield % depends on the Biotechnology industry context. However, Buyback Yield % 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 Buyback Yield % mean?
A high Buyback Yield % can signal that a stock is expensive relative to its fundamentals. Share buyback yield equals the net issuance of stock divided by market cap. View historical data on Sionna Therapeutics and its competitors. Sionna Therapeutics's current Buyback Yield % is 0.02. 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 Buyback Yield % of 0.02. The current Buyback Yield % is 0.02. 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 Buyback Yield % calculated?
Buyback Yield % is calculated from a company's financial statements. For Sionna Therapeutics (SION), the current Buyback Yield % is 0.02 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 Business Description

Address 21 Hickory Drive, Suite 500, Waltham, MA, USA, 02451
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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