WPRT (Westport Fuel Systems) 1-Year Sharpe Ratio: -0.43 (As of Jul. 20, 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.

WPRT Westport Fuel Systems Inc WPRT
48 GF Score
Price $1.87
GF Value $1.26
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Westport Fuel Systems 1-Year Sharpe Ratio?

Westport Fuel Systems WPRT -2.35% 48 1-Year Sharpe Ratio is -0.43 as of Jul. 20, 2026. GuruFocus rates WPRT with a GF Score™ of 48/100 and a GF Value™ of $1.26 (Significantly Overvalued). The stock has 7 warning signs investors should review.

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 (2026-07-20), Westport Fuel Systems's 1-Year Sharpe Ratio is -0.43.

Westport Fuel Systems  (NAS:WPRT) 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.

Westport Fuel Systems 1-Year Sharpe Ratio Related Terms

WPRT vs ORLY, AZO, GPC: 1-Year Sharpe Ratio Comparison

For the Auto Parts subindustry, Westport Fuel Systems'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.

Westport Fuel Systems 1-Year Sharpe Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Westport Fuel Systems's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Westport Fuel Systems's 1-Year Sharpe Ratio falls into.


WPRT
48GF Score
Westport Fuel Systems Inc WPRT
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Westport Fuel Systems 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.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -0.43 mean?
Westport Fuel Systems (WPRT) has a 1-Year Sharpe Ratio of -0.43 as of Jul. 20, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Westport Fuel Systems and its competitors.
Is Westport Fuel Systems' 1-Year Sharpe Ratio too high?
Westport Fuel Systems' current 1-Year Sharpe Ratio is -0.43. Overall, Westport Fuel Systems has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Westport Fuel Systems' 1-Year Sharpe Ratio compare to ORLY and AZO?
Westport Fuel Systems' 1-Year Sharpe Ratio of -0.43 can be compared against companies in the Vehicles & Parts 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 a Vehicles & Parts company?
A good 1-Year Sharpe Ratio depends on the Vehicles & Parts 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 Westport Fuel Systems and its competitors. Westport Fuel Systems's current 1-Year Sharpe Ratio is -0.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Westport Fuel Systems stock overvalued right now?
Based on GuruFocus' analysis, Westport Fuel Systems (WPRT) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.26, compared to a current price of $1.87 — trading 48.4% above its estimated fair value. The current 1-Year Sharpe Ratio is -0.43. Westport Fuel Systems' overall GF Score™ is 48/100 with 7 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 Westport Fuel Systems (WPRT), the current 1-Year Sharpe Ratio is -0.43 as of Jul. 20, 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 Westport Fuel Systems (WPRT) Overvalued in 2026?

Based on GuruFocus' analysis, Westport Fuel Systems stock appears to be overvalued. The current stock price of $1.87 is trading 48.4% above its estimated GF Value™ of $1.26. GuruFocus considers Westport Fuel Systems to be Significantly Overvalued.

Key valuation signals for WPRT:

  • 1-Year Sharpe Ratio: -0.43
  • GF Value™: $1.26 vs. price of $1.87 (48.4% above fair value)
  • GF Score™: 48/100 with 7 warning signs

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

Westport Fuel Systems Business Description

Other Exchanges WPI:GermanyWPRT:Canada
Address 1691 West 75th Avenue, Suite 101, Vancouver, BC, CAN, V6P 6P2
Westport Fuel Systems Inc is an organization engaged in the engineering, manufacturing, and supply of alternative fuel systems and components for transportation applications. It has three reportable segments: High-Pressure Controls, Heavy-Duty OEM, and Cespira. It derives maximum revenue from Heavy-Duty OEM segment. Heavy-Duty OEM segment's products include HPDI related fuel system solutions and components. Geographically, the company operates in Europe, America and Asia, of which it generates maximum revenue from Europe. It also develops and supplies advanced LPG, CNG, LNG and H2 systems and components for OEM (original equipment manufacturer) D-OEM (delayed oem) and After Market (retrofit market) world-wide.
48GF Score

Get the complete analysis for WPRT

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

$1.87
Price
$1.26
GF Value