It's nice to see the Royal Group Co.,Ltd. (SZSE:002329) share price up 16% in a week. But that doesn't change the fact that the returns over the last year have been disappointing. During that time the share price has sank like a stone, descending 53%. It's not that amazing to see a bounce after a drop like that. Of course, it could be that the fall was overdone.

The recent uptick of 16% could be a positive sign of things to come, so let's take a look at historical fundamentals.

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Royal GroupLtd managed to increase earnings per share from a loss to a profit, over the last 12 months.

When a company has just transitioned to profitability, earnings per share growth is not always the best way to look at the share price action. So it makes sense to check out some other factors.

On the other hand, we're certainly perturbed by the 19% decline in Royal GroupLtd's revenue. Many investors see falling revenue as a likely precursor to lower earnings, so this could well explain the weak share price.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

If you are thinking of buying or selling Royal GroupLtd stock, you should check out this FREE detailed report on its balance sheet.

A Different Perspective

While the broader market lost about 19% in the twelve months, Royal GroupLtd shareholders did even worse, losing 53%. However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 5% per year over five years. We realise that Baron Rothschild has said investors should "buy when there is blood on the streets", but we caution that investors should first be sure they are buying a high quality business. It's always interesting to track share price performance over the longer term. But to understand Royal GroupLtd better, we need to consider many other factors. To that end, you should learn about the 2 warning signs we've spotted with Royal GroupLtd (including 1 which is a bit concerning) .

For those who like to find winning investments this free list of undervalued companies with recent insider purchasing, could be just the ticket.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on Chinese exchanges.

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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.

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