Stock Analysis

Optimistic Investors Push STX Engine Co.,Ltd. (KRX:077970) Shares Up 25% But Growth Is Lacking

STX Engine Co.,Ltd. (KRX:077970) shareholders are no doubt pleased to see that the share price has bounced 25% in the last month, although it is still struggling to make up recently lost ground. The last 30 days bring the annual gain to a very sharp 92%.

After such a large jump in price, STX EngineLtd may be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 29.5x, since almost half of all companies in Korea have P/E ratios under 13x and even P/E's lower than 7x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly elevated P/E.

STX EngineLtd certainly has been doing a great job lately as it's been growing earnings at a really rapid pace. The P/E is probably high because investors think this strong earnings growth will be enough to outperform the broader market in the near future. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

Check out our latest analysis for STX EngineLtd

pe-multiple-vs-industry
KOSE:A077970 Price to Earnings Ratio vs Industry December 19th 2025
Although there are no analyst estimates available for STX EngineLtd, take a look at this free data-rich visualisation to see how the company stacks up on earnings, revenue and cash flow.

Is There Enough Growth For STX EngineLtd?

The only time you'd be truly comfortable seeing a P/E as steep as STX EngineLtd's is when the company's growth is on track to outshine the market decidedly.

If we review the last year of earnings growth, the company posted a terrific increase of 219%. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. Accordingly, shareholders probably wouldn't have been overly satisfied with the unstable medium-term growth rates.

This is in contrast to the rest of the market, which is expected to grow by 38% over the next year, materially higher than the company's recent medium-term annualised growth rates.

In light of this, it's alarming that STX EngineLtd's P/E sits above the majority of other companies. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh heavily on the share price eventually.

The Final Word

STX EngineLtd's P/E is flying high just like its stock has during the last month. It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

Our examination of STX EngineLtd revealed its three-year earnings trends aren't impacting its high P/E anywhere near as much as we would have predicted, given they look worse than current market expectations. Right now we are increasingly uncomfortable with the high P/E as this earnings performance isn't likely to support such positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

You should always think about risks. Case in point, we've spotted 2 warning signs for STX EngineLtd you should be aware of, and 1 of them doesn't sit too well with us.

If these risks are making you reconsider your opinion on STX EngineLtd, explore our interactive list of high quality stocks to get an idea of what else is out there.

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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

About KOSE:A077970

STX EngineLtd

STX Engine Co., Ltd. manufactures and sells diesel engines and electronic communication devices in South Korea.

Solid track record with adequate balance sheet.

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