CSN Mineracao (BSP:CMIN3) Shares Buyback Ratio %: 0.55 (As of Aug. 29, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

BSP:CMIN3 CSN Mineracao SA BSP:CMIN3
71 GF Score
Price R$6.00
GF Value R$5.16
Valuation Modestly Overvalued
! 10 Warning Signs
View Full Analysis

What is CSN Mineracao Shares Buyback Ratio %?

CSN Mineracao BSP:CMIN3 -0.17% 71 Shares Buyback Ratio % is 0.55 as of Aug. 29, 2026. GuruFocus rates BSP:CMIN3 with a GF Score™ of 71/100 and a GF Value™ of R$5.16 (Modestly Overvalued). The stock has 10 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. CSN Mineracao's current shares buyback ratio was 0.55%.

CSN Mineracao Shares Buyback Ratio % Related Terms

CSN Mineracao Shares Buyback Ratio % Historical Data

* Premium members only.

The historical data trend for CSN Mineracao'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.

CSN Mineracao Shares Buyback Ratio % Chart

CSN Mineracao Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only 1.89 0.01 0.00 0.97 0.00

CSN Mineracao Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 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 Premium Member Only 0.00 0.00 0.00 0.00 0.55
BSP:CMIN3
71GF Score
CSN Mineracao SA BSP:CMIN3
Shares Buyback Ratio % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

CSN Mineracao Shares Buyback Ratio % Calculation

CSN Mineracao'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 )
=(5432.045 - 5432.045) / 5432.045
=0.00%

CSN Mineracao's Shares Buyback Ratio for the quarter that ended in Jun. 2026 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Mar. 2026 ) - Shares Outstanding (EOP) (A: Jun. 2026 )) / Shares Outstanding (EOP) (A: Mar. 2026 )
=(5432.045 - 5402.435) / 5432.045
=0.55%

* 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 0.55 mean?
CSN Mineracao (BSP:CMIN3) has a Shares Buyback Ratio % of 0.55 as of Aug. 29, 2026. Share buyback ratio is the percent change of a company's shares outstanding from two periods. View historical data on CSN Mineracao and its competitors.
Is CSN Mineracao's Shares Buyback Ratio % too high?
CSN Mineracao's current Shares Buyback Ratio % is 0.55. Overall, CSN Mineracao has a GF Score™ of 71/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does CSN Mineracao's Shares Buyback Ratio % compare to NUE and STLD?
CSN Mineracao's Shares Buyback Ratio % of 0.55 can be compared against companies in the Steel 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 Steel company?
A good Shares Buyback Ratio % depends on the Steel 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 CSN Mineracao and its competitors. CSN Mineracao's current Shares Buyback Ratio % is 0.55. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CSN Mineracao stock overvalued right now?
Based on GuruFocus' analysis, CSN Mineracao (BSP:CMIN3) is currently considered Modestly Overvalued. The stock's GF Value™ is R$5.16, compared to a current price of R$6.00 — trading 16.3% above its estimated fair value. The current Shares Buyback Ratio % is 0.55. CSN Mineracao's overall GF Score™ is 71/100 with 10 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 CSN Mineracao (BSP:CMIN3), the current Shares Buyback Ratio % is 0.55 as of Aug. 29, 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 CSN Mineracao (BSP:CMIN3) Overvalued in 2026?

Based on GuruFocus' analysis, CSN Mineracao stock appears to be overvalued. The current stock price of R$6.00 is trading 16.3% above its estimated GF Value™ of R$5.16. GuruFocus considers CSN Mineracao to be Modestly Overvalued.

Key valuation signals for BSP:CMIN3:

  • Shares Buyback Ratio %: 0.55
  • GF Value™: R$5.16 vs. price of R$6.00 (16.3% above fair value)
  • GF Score™: 71/100 with 10 warning signs

No single metric tells the full story. See the BSP:CMIN3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

CSN Mineracao Business Description

Address Casa de Pedra, PO Box: 97, Congonhas, MG, BRA, 36415-000
CSN Mineracao SA is engaged in the steelmaking business. The company operates in steel, mining, cement, logistics, and energy segments. The product portfolio includes flat, long, steel packaging, steel cutting services, and others. The company operates in Asia, Europe, and the domestic country, with the majority of revenue from Asia.
71GF Score

Get the complete analysis for BSP:CMIN3

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

R$6.00
Price
R$5.16
GF Value