Westport Fuel Systems Inc. (WPRT) P/E Ratio History
Deep ValueTrading at -0.8x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 2019–2022
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P/E Ratio Analysis
As of November 8, 2026, Westport Fuel Systems Inc. (WPRT) trades at a price-to-earnings ratio of -0.8x, with a stock price of $1.89 and trailing twelve-month earnings per share of $-2.35.
The current P/E is 100% below its 5-year average of 296.4x. Over the past five years, WPRT's P/E has ranged from a low of 10.6x to a high of 1436.4x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Industrials sector median P/E of 22.3x, WPRT trades at a 104% discount to its sector peers. The sector includes 417 companies with P/E ratios ranging from 0.0x to 193.8x.
Relative to the broader market, WPRT trades at a notable discount to the S&P 500 median P/E of 21.8x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our WPRT DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
WPRT Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
WPRT P/E vs Peers
Trucks, Specialty Vehicles and Components peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $4B | 18.8 | 2.38 | +13% | |
| $10B | 16.8 | 0.74Best | -12% | |
| $1B | 18.3 | 0.80 | +12% | |
| $259M | 14.9Lowest | - | +9% | |
| $62B | 18.7 | 1.66 | -28% | |
| $54B | 19.5 | 1.54 | -43% | |
| $58B | 18.9 | - | +70%Best |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
WPRT Historical P/E Data (2019–2022)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2022 Q1 | - | $15.80 | $1.49 | 10.6x | -96% |
| FY2021 Q4 | Dec 31 2021 | $23.70 | $0.84 | 28.2x | -90% |
| FY2021 Q3 | - | $32.90 | $0.83 | 39.6x | -87% |
| FY2021 Q2 | Jun 30 2021 | $53.10 | $1.23 | 43.3x | -85% |
| FY2021 Q1 | Mar 31 2021 | $71.90 | $0.33 | 220.3x | -26% |
| FY2019 Q4 | - | $23.70 | $0.02 | 1436.4x | +385% |
Average P/E for displayed period: 296.4x
WPRT Chart Terminal
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Intrinsic Valuation
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Historical Returns
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Peer Comparison
Compare growth, multiples, and margins vs sector.
WPRT — Frequently Asked Questions
Quick answers to the most common questions about buying WPRT stock.
What is WPRT's P/E ratio?
Westport Fuel Systems Inc. (WPRT) trailing twelve-month P/E ratio is -0.8x, based on TTM diluted EPS of $-2.35. The 5-year average P/E is 296.4x and the historical range spans 10.6x to 1436.4x.
Is WPRT stock overvalued or undervalued?
WPRT trades at -0.8x P/E, below its 5-year average of 296.4x. At the 0th percentile of its historical range (10.6x–1436.4x), the stock is priced at a discount to its own history.
Is WPRT stock expensive?
No, WPRT is not expensive on a historical basis. The current P/E of -0.8x is below the 5-year average of 296.4x and sits at the 0th percentile of its valuation range.
What is WPRT's historical P/E range?
Over the past 5 years, WPRT's P/E ratio has ranged from 10.6x to 1436.4x, with a median of 43.3x and an average of 296.4x. The current P/E of -0.8x places the stock at the 0th percentile of this range. Full historical data spans 2019–2022.
How does WPRT's P/E compare to the S&P 500?
WPRT trades at -0.8x P/E versus the S&P 500 median of 21.8x. The 104% discount to the market suggests lower growth expectations or perceived higher risk.
How does WPRT's valuation compare to Industrials peers?
Westport Fuel Systems Inc. P/E of -0.8x compares to the Industrials sector median of 22.3x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is WPRT's PEG ratio?
WPRT PEG ratio is N/A, based on a P/E of -0.8x and EPS growth of -180.3%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is WPRT's earnings yield?
WPRT earnings yield is N/A, the inverse of its -0.8x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.