Stock Analysis

NanoEntek, Inc. (KOSDAQ:039860) Stock Is Going Strong But Fundamentals Look Uncertain: What Lies Ahead ?

NanoEntek (KOSDAQ:039860) has had a great run on the share market with its stock up by a significant 29% over the last month. However, we wonder if the company's inconsistent financials would have any adverse impact on the current share price momentum. Specifically, we decided to study NanoEntek's ROE in this article.

ROE or return on equity is a useful tool to assess how effectively a company can generate returns on the investment it received from its shareholders. In other words, it is a profitability ratio which measures the rate of return on the capital provided by the company's shareholders.

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How Is ROE Calculated?

The formula for ROE is:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for NanoEntek is:

3.7% = ₩2.7b ÷ ₩73b (Based on the trailing twelve months to September 2025).

The 'return' is the yearly profit. That means that for every ₩1 worth of shareholders' equity, the company generated ₩0.04 in profit.

View our latest analysis for NanoEntek

What Has ROE Got To Do With Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. Depending on how much of these profits the company reinvests or "retains", and how effectively it does so, we are then able to assess a company’s earnings growth potential. Assuming everything else remains unchanged, the higher the ROE and profit retention, the higher the growth rate of a company compared to companies that don't necessarily bear these characteristics.

NanoEntek's Earnings Growth And 3.7% ROE

It is quite clear that NanoEntek's ROE is rather low. Even when compared to the industry average of 9.3%, the ROE figure is pretty disappointing. Given the circumstances, the significant decline in net income by 29% seen by NanoEntek over the last five years is not surprising. We reckon that there could also be other factors at play here. For instance, the company has a very high payout ratio, or is faced with competitive pressures.

However, when we compared NanoEntek's growth with the industry we found that while the company's earnings have been shrinking, the industry has seen an earnings growth of 8.7% in the same period. This is quite worrisome.

past-earnings-growth
KOSDAQ:A039860 Past Earnings Growth December 9th 2025

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. The investor should try to establish if the expected growth or decline in earnings, whichever the case may be, is priced in. By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. One good indicator of expected earnings growth is the P/E ratio which determines the price the market is willing to pay for a stock based on its earnings prospects. So, you may want to check if NanoEntek is trading on a high P/E or a low P/E, relative to its industry.

Is NanoEntek Using Its Retained Earnings Effectively?

NanoEntek doesn't pay any regular dividends, meaning that potentially all of its profits are being reinvested in the business, which doesn't explain why the company's earnings have shrunk if it is retaining all of its profits. It looks like there might be some other reasons to explain the lack in that respect. For example, the business could be in decline.

Conclusion

On the whole, we feel that the performance shown by NanoEntek can be open to many interpretations. While the company does have a high rate of reinvestment, the low ROE means that all that reinvestment is not reaping any benefit to its investors, and moreover, its having a negative impact on the earnings growth. Wrapping up, we would proceed with caution with this company and one way of doing that would be to look at the risk profile of the business. To know the 2 risks we have identified for NanoEntek visit our risks dashboard for free.

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

Discover if NanoEntek 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:A039860

NanoEntek

Engages in the research and development, production, and sale of life-science lab equipment, in vitro diagnostic medical devices, point of care diagnostic devices, and related consumables and solutions in Korea and internationally.

Flawless balance sheet with solid track record.

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