RDFEF (Brookside Energy) 3-Year Sortino Ratio: 1.12 (As of Aug. 31, 2026)

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RDFEF Brookside Energy Ltd RDFEF
38 GF Score
Price $0.30
GF Value $0.41
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Brookside Energy 3-Year Sortino Ratio?

Brookside Energy RDFEF +1.80% 38 3-Year Sortino Ratio is 1.12 as of Aug. 31, 2026. GuruFocus rates RDFEF with a GF Score™ of 38/100 and a GF Value™ of $0.41 (Modestly Undervalued). The stock has 2 warning signs investors should review.

The 3-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past three years. As of today (2026-08-31), Brookside Energy's 3-Year Sortino Ratio is 1.12.


Brookside Energy  (OTCPK:RDFEF) 3-Year Sortino Ratio Explanation

The 3-Year Sortino Ratio inidicates the risk-adjusted return of an investment over the past three year. It is calculated as the annualized result of the average three-year monthly excess returns divided by the standard deviation of negative returns in the three-year period. 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.

Differnt from the Sharpe Ratio that penalizes both upside and downside volatility equally, the Sortino Ratio penalizes only those returns falling below a user-specified target or required rate of return. The expected returns here is set to the risk-free rate as well.


Brookside Energy 3-Year Sortino Ratio Related Terms


RDFEF vs COP, EOG, OXY: 3-Year Sortino Ratio Comparison

For the Oil & Gas E&P subindustry, Brookside Energy's 3-Year Sortino Ratio, along with its competitors' market caps and 3-Year Sortino 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.


Brookside Energy 3-Year Sortino Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Brookside Energy's 3-Year Sortino Ratio distribution charts can be found below:

* The bar in red indicates where Brookside Energy's 3-Year Sortino Ratio falls into.


RDFEF
38GF Score
Brookside Energy Ltd RDFEF
3-Year Sortino Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Brookside Energy 3-Year Sortino Ratio Calculation

The 3-Year Sortino Ratio measures the risk-adjusted return of an investment asset or portfolio in the last three year, focusing specifically on downside risk rather than total risk. A stock / portfolio's 3-Year Sortino Ratio can be calculated by dividing the difference between the three-year average monthly returns of the investment and the risk-free rate, by the standard deviation of the downside risks over the past three year.

A downside risk is a potential loss from the asset or investment. The Downside risk here is measured by the downside deviation, which is the standard deviation of negative returns.

Frequently Asked Questions Learn more about 3-Year Sortino Ratio →
What does a 3-Year Sortino Ratio of 1.12 mean?
Brookside Energy (RDFEF) has a 3-Year Sortino Ratio of 1.12 as of Aug. 31, 2026. 3-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past three years. View historical data for Brookside Energy and its competitors.
Is Brookside Energy's 3-Year Sortino Ratio too high?
Brookside Energy's current 3-Year Sortino Ratio is 1.12. Overall, Brookside Energy has a GF Score™ of 38/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Brookside Energy's 3-Year Sortino Ratio compare to COP and EOG?
Brookside Energy's 3-Year Sortino Ratio of 1.12 can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year Sortino Ratio for an Oil & Gas company?
A good 3-Year Sortino Ratio depends on the Oil & Gas industry context. However, 3-Year Sortino 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 3-Year Sortino Ratio mean?
A high 3-Year Sortino Ratio can signal that a stock is expensive relative to its fundamentals. 3-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past three years. View historical data for Brookside Energy and its competitors. Brookside Energy's current 3-Year Sortino Ratio is 1.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Brookside Energy stock overvalued right now?
Based on GuruFocus' analysis, Brookside Energy (RDFEF) is currently considered Modestly Undervalued. The stock's GF Value™ is $0.41, compared to a current price of $0.30 — trading 26% below its estimated fair value. The current 3-Year Sortino Ratio is 1.12. Brookside Energy's overall GF Score™ is 38/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Sortino Ratio calculated?
3-Year Sortino Ratio is calculated from a company's financial statements. For Brookside Energy (RDFEF), the current 3-Year Sortino Ratio is 1.12 as of Aug. 31, 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 Brookside Energy (RDFEF) Overvalued in 2026?

Based on GuruFocus' analysis, Brookside Energy stock appears to be undervalued. The current stock price of $0.30 is trading 26% below its estimated GF Value™ of $0.41. GuruFocus considers Brookside Energy to be Modestly Undervalued.

Key valuation signals for RDFEF:

  • 3-Year Sortino Ratio: 1.12
  • GF Value™: $0.41 vs. price of $0.30 (26% below fair value)
  • GF Score™: 38/100 with 2 warning signs

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


Brookside Energy Business Description

Industry EnergyOil & Gas
Other Exchanges 8F3:GermanyBRK:Australia
Address 50 Kings Park Road, Level 1, West Perth, WA, AUS, 6005
Brookside Energy Ltd is engaged in the exploration and appraisal of oil and gas projects. The company's segments include Oil and gas exploration and Corporate. The company derives majority of its revenue from Oil and Gas Exploration. It is focused on Anadarko Basin in the western part of Oklahoma which is oil and gas rich, and generally well explored.
38GF Score

Get the complete analysis for RDFEF

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

$0.30
Price
$0.41
GF Value