There's Reason For Concern Over Shinjin Sm Co.,Ltd.'s (KOSDAQ:138070) Massive 34% Price Jump

Shinjin Sm Co.,Ltd. (KOSDAQ:138070) shares have continued their recent momentum with a 34% gain in the last month alone. Looking back a bit further, it's encouraging to see the stock is up 42% in the last year.

After such a large jump in price, Shinjin SmLtd may be sending bearish signals at the moment with its price-to-earnings (or "P/E") ratio of 16.4x, since almost half of all companies in Korea have P/E ratios under 12x and even P/E's lower than 6x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

As an illustration, earnings have deteriorated at Shinjin SmLtd over the last year, which is not ideal at all. It might be that many expect the company to still outplay most other companies over the coming period, which has kept the P/E from collapsing. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

See our latest analysis for Shinjin SmLtd

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What Are Growth Metrics Telling Us About The High P/E?

Shinjin SmLtd's P/E ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform better than the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 7.1%. At least EPS has managed not to go completely backwards from three years ago in aggregate, thanks to the earlier period of growth. So it appears to us that the company has had a mixed result in terms of growing earnings over that time.

This is in contrast to the rest of the market, which is expected to grow by 28% over the next year, materially higher than the company's recent medium-term annualised growth rates.

In light of this, it's alarming that Shinjin SmLtd'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. There's a good chance existing shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with recent growth rates.

What We Can Learn From Shinjin SmLtd's P/E?

Shinjin SmLtd's P/E is getting right up there since its shares have risen strongly. While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that Shinjin SmLtd currently trades on a much higher than expected P/E since its recent three-year growth is lower than the wider market forecast. When we see weak earnings with slower than market growth, we suspect the share price is at risk of declining, sending the high P/E lower. 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.

Having said that, be aware Shinjin SmLtd is showing 3 warning signs in our investment analysis, you should know about.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

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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.