African Rainbow Minerals (HAM:EB9) 1-Year Sharpe Ratio: N/A (As of Aug. 12, 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.
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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.

HAM:EB9 African Rainbow Minerals Ltd HAM:EB9
57 GF Score
Price €9.25
GF Value €9.23
Valuation Fairly Valued
! 7 Warning Signs
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What is African Rainbow Minerals 1-Year Sharpe Ratio?

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-08-12), African Rainbow Minerals's 1-Year Sharpe Ratio is Not available.

African Rainbow Minerals  (HAM:EB9) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

African Rainbow Minerals 1-Year Sharpe Ratio Related Terms

African Rainbow Minerals 1-Year Sharpe Ratio Competitor Comparison

For the Other Industrial Metals & Mining subindustry, African Rainbow Minerals's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio 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.

African Rainbow Minerals 1-Year Sharpe Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, African Rainbow Minerals's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where African Rainbow Minerals's 1-Year Sharpe Ratio falls into.


HAM:EB9
57GF Score
African Rainbow Minerals Ltd HAM:EB9
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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African Rainbow Minerals 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Is African Rainbow Minerals (HAM:EB9) Overvalued in 2026?

Based on GuruFocus' analysis, African Rainbow Minerals stock appears to be overvalued. The current stock price of €9.25 is trading 0.2% above its estimated GF Value™ of €9.23. GuruFocus considers African Rainbow Minerals to be Fairly Valued.

Key valuation signals for HAM:EB9:

  • 1-Year Sharpe Ratio: N/A
  • GF Value™: €9.23 vs. price of €9.25 (0.2% above fair value)
  • GF Score™: 57/100 with 7 warning signs

No single metric tells the full story. See the HAM:EB9 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

African Rainbow Minerals Business Description

Address 29 Impala Road, ARM House, Chislehurston, Sandton, GT, ZAF, 2196
African Rainbow Minerals Ltd is a South African diversified mining and minerals company with operations in South Africa and Malaysia. The group operates through four main segments: ARM Platinum, which includes platinum group metals and nickel; ARM Ferrous, focused on iron ore, manganese ore, and chrome ore; ARM Coal, operating mainly in the Goedgevonden Mine; and ARM Corporate, which includes Machadodorp Works, gold investments, and other activities. The company produces manganese alloys and holds a strategic investment in gold. The company generates the majority of its revenue from South Africa and maintains a presence in Europe, the Americas, and the Far and Middle East.
57GF Score

Get the complete analysis for HAM:EB9

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€9.25
Price
€9.23
GF Value