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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 (2026-08-21), Rentokil Initial's 3-Year Sortino Ratio is -0.59.
Rentokil Initial (NYSE:RTO) 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.
Rentokil Initial 3-Year Sortino Ratio Related Terms
RTO vs CTAS, CPRT, GPN: 3-Year Sortino Ratio Comparison
For the Specialty Business Services subindustry, Rentokil Initial'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.
Rentokil Initial 3-Year Sortino Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, Rentokil Initial's 3-Year Sortino Ratio distribution charts can be found below:
* The bar in red indicates where Rentokil Initial's 3-Year Sortino Ratio falls into.
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.
Rentokil Initial (RTO) has a 3-Year Sortino Ratio of -0.59 as of Aug. 21, 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 Rentokil Initial and its competitors.
Is Rentokil Initial's 3-Year Sortino Ratio too high?
Rentokil Initial's current 3-Year Sortino Ratio is -0.59. Overall, Rentokil Initial has a GF Score™ of 85/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Rentokil Initial's 3-Year Sortino Ratio compare to CTAS and CPRT?
Rentokil Initial's 3-Year Sortino Ratio of -0.59 can be compared against companies in the Business Services 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 a Business Services company?
A good 3-Year Sortino Ratio depends on the Business Services 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 Rentokil Initial and its competitors. Rentokil Initial's current 3-Year Sortino Ratio is -0.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rentokil Initial stock overvalued right now?
Based on GuruFocus' analysis, Rentokil Initial (RTO) is currently considered Modestly Undervalued. The stock's GF Value™ is $30.31, compared to a current price of $23.65 — trading 22% below its estimated fair value. The current 3-Year Sortino Ratio is -0.59. Rentokil Initial's overall GF Score™ is 85/100 with 5 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 Rentokil Initial (RTO), the current 3-Year Sortino Ratio is -0.59 as of Aug. 21, 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 Rentokil Initial (RTO) Overvalued in 2026?
Based on GuruFocus' analysis, Rentokil Initial stock appears to be undervalued.
The current stock price of $23.65 is trading 22% below its estimated GF Value™ of $30.31.
GuruFocus considers Rentokil Initial to be Modestly Undervalued.
Key valuation signals for RTO:
3-Year Sortino Ratio: -0.59
GF Value™: $30.31 vs. price of $23.65 (22% below fair value)
No single metric tells the full story. See the RTO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rentokil Initial is the largest global provider of route-based pest control and commercial hygiene services, operating in over 90 countries, with its largest operations in the United States following the acquisition of Terminix. The group also offers a range of specialist route-based services, including office and commercial space plant care, property care, and workwear rentals. The group serves a diverse client base of global food producers, hotel chains, industrial goods companies, restaurants, and individual residential customers.
85GF Score
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