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.
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.
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 (2026-08-04), Gulf Marine Services's 1-Year Sharpe Ratio is -0.05.
Gulf Marine Services (CHIX:GMSl) 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.
Gulf Marine Services 1-Year Sharpe Ratio Related Terms
CHIX:GMSL vs SLB, BKR, FTI: 1-Year Sharpe Ratio Comparison
For the Oil & Gas Equipment & Services subindustry, Gulf Marine Services'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.
Gulf Marine Services 1-Year Sharpe Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Gulf Marine Services's 1-Year Sharpe Ratio distribution charts can be found below:
* The bar in red indicates where Gulf Marine Services's 1-Year Sharpe Ratio falls into.
Gulf Marine Services 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.
Gulf Marine Services (CHIX:GMSL) has a 1-Year Sharpe Ratio of -0.05 as of Aug. 04, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Gulf Marine Services and its competitors.
Is Gulf Marine Services' 1-Year Sharpe Ratio too high?
Gulf Marine Services' current 1-Year Sharpe Ratio is -0.05. Overall, Gulf Marine Services has a GF Score™ of 53/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Gulf Marine Services' 1-Year Sharpe Ratio compare to SLB and BKR?
Gulf Marine Services' 1-Year Sharpe Ratio of -0.05 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 1-Year Sharpe Ratio for an Oil & Gas company?
A good 1-Year Sharpe Ratio depends on the Oil & Gas industry context. However, 1-Year Sharpe 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Gulf Marine Services and its competitors. Gulf Marine Services's current 1-Year Sharpe Ratio is -0.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Gulf Marine Services stock overvalued right now?
Based on GuruFocus' analysis, Gulf Marine Services (CHIX:GMSL) is currently considered Modestly Overvalued. The stock's GF Value™ is £0.17, compared to a current price of £0.19 — trading 10.8% above its estimated fair value. The current 1-Year Sharpe Ratio is -0.05. Gulf Marine Services' overall GF Score™ is 53/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Gulf Marine Services (CHIX:GMSL), the current 1-Year Sharpe Ratio is -0.05 as of Aug. 04, 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 Gulf Marine Services (CHIX:GMSL) Overvalued in 2026?
Based on GuruFocus' analysis, Gulf Marine Services stock appears to be overvalued.
The current stock price of £0.19 is trading 10.8% above its estimated GF Value™ of £0.17.
GuruFocus considers Gulf Marine Services to be Modestly Overvalued.
Key valuation signals for CHIX:GMSL:
1-Year Sharpe Ratio: -0.05
GF Value™: £0.17 vs. price of £0.19 (10.8% above fair value)
No single metric tells the full story. See the CHIX:GMSL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Gulf Marine Services PLC is a United Kingdom-based operator of self-propelled and self-elevating support vessels (SESVs). Its assets provide a stable platform for the delivery of a range of services performed by the company's clients throughout the total lifecycle of offshore oil, gas, and renewable energy activities. Its operating business segments include Six K-Class vessels, which include the Kamikaze, Kikuyu, Kawawa, Kudeta, Keloa, and Pepper vessels; Three S-Class vessels, which include the Shamal, Scirocco, and Sharqi vessels; Five E-Class vessels, which include the Endeavour, Endurance, Enterprise, and Evolution vessels; and the Other vessels segment.
53GF Score
Get the complete analysis for CHIX:GMSL
1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
CHIX:GMSL has been successfully added to your 
