Jeil PharmaceuticalLtd (KRX:271980) adds ₩24b to market cap in the past 7 days, though investors from five years ago are still down 80%

Simply Wall St

While it may not be enough for some shareholders, we think it is good to see the Jeil Pharmaceutical Co.,Ltd (KRX:271980) share price up 22% in a single quarter. But spare a thought for the long term holders, who have held the stock as it bled value over the last five years. Five years have seen the share price descend precipitously, down a full 80%. While the recent increase might be a green shoot, we're certainly hesitant to rejoice. The fundamental business performance will ultimately determine if the turnaround can be sustained. 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 Jeil PharmaceuticalLtd 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.

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Jeil PharmaceuticalLtd became profitable within the last five years. That would generally be considered a positive, so we are surprised to see the share price is down. Other metrics may better explain the share price move.

The revenue decline of 0.6% isn't too bad. But if the market expected durable top line growth, then that could explain the share price weakness.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

KOSE:A271980 Earnings and Revenue Growth December 1st 2025

This free interactive report on Jeil PharmaceuticalLtd's balance sheet strength is a great place to start, if you want to investigate the stock further.

A Different Perspective

Jeil PharmaceuticalLtd provided a TSR of 36% over the last twelve months. But that was short of the market average. But at least that's still a gain! Over five years the TSR has been a reduction of 13% per year, over five years. It could well be that the business is stabilizing. 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. To that end, you should be aware of the 1 warning sign we've spotted with Jeil PharmaceuticalLtd .

But note: Jeil PharmaceuticalLtd 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 South Korean exchanges.

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

Discover if Jeil PharmaceuticalLtd 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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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.