Stock Analysis

Q.S.I's (KOSDAQ:066310) Solid Earnings Are Supported By Other Strong Factors

Investors were underwhelmed by the solid earnings posted by Q.S.I Co., LTD. (KOSDAQ:066310) recently. We have done some analysis and have found some comforting factors beneath the profit numbers.

earnings-and-revenue-history
KOSDAQ:A066310 Earnings and Revenue History November 26th 2025
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The Impact Of Unusual Items On Profit

For anyone who wants to understand Q.S.I's profit beyond the statutory numbers, it's important to note that during the last twelve months statutory profit was reduced by ₩187m due to unusual items. It's never great to see unusual items costing the company profits, but on the upside, things might improve sooner rather than later. When we analysed the vast majority of listed companies worldwide, we found that significant unusual items are often not repeated. And that's hardly a surprise given these line items are considered unusual. Q.S.I took a rather significant hit from unusual items in the year to September 2025. All else being equal, this would likely have the effect of making the statutory profit look worse than its underlying earnings power.

Note: we always recommend investors check balance sheet strength. Click here to be taken to our balance sheet analysis of Q.S.I.

Our Take On Q.S.I's Profit Performance

As we mentioned previously, the Q.S.I's profit was hampered by unusual items in the last year. Because of this, we think Q.S.I's underlying earnings potential is as good as, or possibly even better, than the statutory profit makes it seem! Furthermore, it has done a great job growing EPS over the last year. The goal of this article has been to assess how well we can rely on the statutory earnings to reflect the company's potential, but there is plenty more to consider. If you want to do dive deeper into Q.S.I, you'd also look into what risks it is currently facing. At Simply Wall St, we found 2 warning signs for Q.S.I and we think they deserve your attention.

Today we've zoomed in on a single data point to better understand the nature of Q.S.I's profit. But there is always more to discover if you are capable of focussing your mind on minutiae. For example, many people consider a high return on equity as an indication of favorable business economics, while others like to 'follow the money' and search out stocks that insiders are buying. While it might take a little research on your behalf, you may find this free collection of companies boasting high return on equity, or this list of stocks with significant insider holdings to be useful.

Valuation is complex, but we're here to simplify it.

Discover if Q.S.I might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.

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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 KOSDAQ:A066310

Q.S.I

Develops, manufactures, and sells red and infra-red laser diodes in South Korea and internationally.

Flawless balance sheet with solid track record.

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