Investors in Westport Fuel Systems (TSE:WPRT) from five years ago are still down 83%, even after 11% gain this past week

This week we saw the Westport Fuel Systems Inc. (TSE:WPRT) share price climb by 11%. But will that heal all the wounds inflicted over 5 years of declines? Unlikely. In fact, the share price has tumbled down a mountain to land 83% lower after that period. It's true that the recent bounce could signal the company is turning over a new leaf, but we are not so sure. The real question is whether the business can leave its past behind and improve itself over the years ahead. We really hope anyone holding through that price crash has a diversified portfolio. Even when you lose money, you don't have to lose the lesson.

While the last five years has been tough for Westport Fuel Systems shareholders, this past week has shown signs of promise. So let's look at the longer term fundamentals and see if they've been the driver of the negative returns.

Check out our latest analysis for Westport Fuel Systems

Because Westport Fuel Systems made a loss in the last twelve months, we think the market is probably more focussed on revenue and revenue growth, at least for now. When a company doesn't make profits, we'd generally hope to see good revenue growth. As you can imagine, fast revenue growth, when maintained, often leads to fast profit growth.

In the last half decade, Westport Fuel Systems saw its revenue increase by 3.8% per year. That's not a very high growth rate considering it doesn't make profits. It's not so sure that share price crash of 13% per year is completely deserved, but the market is doubtless disappointed. We'd be pretty cautious about this one, although the sell-off may be too severe. We'd recommend focussing any further research on the likelihood of profitability in the foreseeable future, given the muted revenue growth.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

Balance sheet strength is crucial. It might be well worthwhile taking a look at our free report on how its financial position has changed over time.

A Different Perspective

Investors in Westport Fuel Systems had a tough year, with a total loss of 38%, against a market gain of about 19%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 13% over the last half decade. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. Consider risks, for instance. Every company has them, and we've spotted 2 warning signs for Westport Fuel Systems you should know about.

But note: Westport Fuel Systems may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on Canadian exchanges.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.