As Manawa Energy (NZSE:MNW) rises 8.9% this past week, investors may now be noticing the company's three-year earnings growth

Manawa Energy Limited (NZSE:MNW) shareholders should be happy to see the share price up 13% in the last month. But that cannot eclipse the less-than-impressive returns over the last three years. Truth be told the share price declined 44% in three years and that return, Dear Reader, falls short of what you could have got from passive investing with an index fund.

While the last three years has been tough for Manawa Energy 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.

See our latest analysis for Manawa Energy

To paraphrase Benjamin Graham: Over the short term the market is a voting machine, but over the long term it's a weighing machine. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

During the unfortunate three years of share price decline, Manawa Energy actually saw its earnings per share (EPS) improve by 9.5% per year. This is quite a puzzle, and suggests there might be something temporarily buoying the share price. Alternatively, growth expectations may have been unreasonable in the past.

Since the change in EPS doesn't seem to correlate with the change in share price, it's worth taking a look at other metrics.

Arguably the revenue decline of 9.4% per year has people thinking Manawa Energy is shrinking. And that's not surprising, since it seems unlikely that EPS growth can continue for long in the absence of revenue growth.

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

We know that Manawa Energy has improved its bottom line lately, but what does the future have in store? So we recommend checking out this free report showing consensus forecasts

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. The TSR incorporates the value of any spin-offs or discounted capital raisings, along with any dividends, based on the assumption that the dividends are reinvested. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. As it happens, Manawa Energy's TSR for the last 3 years was -32%, which exceeds the share price return mentioned earlier. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

While the broader market gained around 2.0% in the last year, Manawa Energy shareholders lost 2.2% (even including dividends). Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 1.6% per year over five years. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. For example, we've discovered 2 warning signs for Manawa Energy (1 is significant!) that you should be aware of before investing here.

But note: Manawa Energy 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 New Zealander 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.