CSPHF (CStone Pharmaceuticals) Shares Buyback Ratio %: -17.14 (As of Sep. 08, 2026)

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CSPHF CStone Pharmaceuticals CSPHF
48 GF Score
Price $0.91
GF Value $0.16
Valuation Significantly Overvalued
! 6 Warning Signs
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What is CStone Pharmaceuticals Shares Buyback Ratio %?

CStone Pharmaceuticals CSPHF +33.09% 48 Shares Buyback Ratio % is -17.14 as of Sep. 08, 2026. GuruFocus rates CSPHF with a GF Score™ of 48/100 and a GF Value™ of $0.16 (Significantly Overvalued). The stock has 6 warning signs investors should review.

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

GuruFocus calculates shares buyback ratio using previous shares outstanding minus the current shares outstanding, and then divides by previous shares outstanding. CStone Pharmaceuticals's current shares buyback ratio was -17.14%.

CStone Pharmaceuticals Shares Buyback Ratio % Related Terms

CStone Pharmaceuticals Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for CStone Pharmaceuticals's Shares Buyback Ratio % 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.

CStone Pharmaceuticals Shares Buyback Ratio % Chart

CStone Pharmaceuticals Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -1.11 -0.92 -6.45 -0.13 -15.43

CStone Pharmaceuticals Semi-Annual Data
Dec16 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25 Jun26
Shares Buyback Ratio % 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 -0.13 -6.58 -8.31 -8.15
CSPHF
48GF Score
CStone Pharmaceuticals CSPHF
Shares Buyback Ratio % is just one metric. See GF Score™, valuation, warning signs, and more.
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CStone Pharmaceuticals Shares Buyback Ratio % Calculation

CStone Pharmaceuticals's Shares Buyback Ratio for the fiscal year that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2024 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Dec. 2024 )
=(1276.923 - 1473.942) / 1276.923
=-15.43%

CStone Pharmaceuticals's Shares Buyback Ratio for the quarter that ended in Dec. 2025 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Jun. 2025 ) - Shares Outstanding (EOP) (A: Dec. 2025 )) / Shares Outstanding (EOP) (A: Jun. 2025 )
=(1360.888 - 1473.942) / 1360.888
=-8.31%

* 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 Shares Buyback Ratio % →
What does a Shares Buyback Ratio % of -17.14 mean?
CStone Pharmaceuticals (CSPHF) has a Shares Buyback Ratio % of -17.14 as of Sep. 08, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on CStone Pharmaceuticals and its competitors.
Is CStone Pharmaceuticals' Shares Buyback Ratio % too high?
CStone Pharmaceuticals' current Shares Buyback Ratio % is -17.14. Overall, CStone Pharmaceuticals has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does CStone Pharmaceuticals' Shares Buyback Ratio % compare to VRTX and REGN?
CStone Pharmaceuticals' Shares Buyback Ratio % of -17.14 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 Shares Buyback Ratio % for a Biotechnology company?
A good Shares Buyback Ratio % depends on the Biotechnology industry context. However, Shares Buyback Ratio % 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 Shares Buyback Ratio % mean?
A high Shares Buyback Ratio % can signal that a stock is expensive relative to its fundamentals. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on CStone Pharmaceuticals and its competitors. CStone Pharmaceuticals's current Shares Buyback Ratio % is -17.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CStone Pharmaceuticals stock overvalued right now?
Based on GuruFocus' analysis, CStone Pharmaceuticals (CSPHF) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.16, compared to a current price of $0.91 — trading 469.3% above its estimated fair value. The current Shares Buyback Ratio % is -17.14. CStone Pharmaceuticals' overall GF Score™ is 48/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Buyback Ratio % calculated?
Shares Buyback Ratio % is calculated from a company's financial statements. For CStone Pharmaceuticals (CSPHF), the current Shares Buyback Ratio % is -17.14 as of Sep. 08, 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.

Is CStone Pharmaceuticals (CSPHF) Overvalued in 2026?

Based on GuruFocus' analysis, CStone Pharmaceuticals stock appears to be overvalued. The current stock price of $0.91 is trading 469.3% above its estimated GF Value™ of $0.16. GuruFocus considers CStone Pharmaceuticals to be Significantly Overvalued.

Key valuation signals for CSPHF:

  • Shares Buyback Ratio %: -17.14
  • GF Value™: $0.16 vs. price of $0.91 (469.3% above fair value)
  • GF Score™: 48/100 with 6 warning signs

No single metric tells the full story. See the CSPHF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

CStone Pharmaceuticals Business Description

Other Exchanges 02616:Hong KongPH4:Germany
Address 218 Xinghu Street, C1 Building, North Block, Suzhou Industrial Park, Suzhou, CHN, 215123
CStone Pharmaceuticals is engaged in developing and commercializing immuno-oncology and molecularly targeted drugs to address unmet medical needs in cancer treatment. The Group has been operating in one reportable segment, being the research and development of high-complex biopharmaceutical products, the sale of pharmaceutical products, and provide license of its IP or commercialisation licenses to customers.
48GF Score

Get the complete analysis for CSPHF

Shares Buyback Ratio % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$0.91
Price
$0.16
GF Value