It's not possible to invest over long periods without making some bad investments. But really big losses can really drag down an overall portfolio. So spare a thought for the long term shareholders of Articore Group Limited (ASX:ATG); the share price is down a whopping 90% in the last three years. That would be a disturbing experience. The more recent news is of little comfort, with the share price down 36% in a year. We really feel for shareholders in this scenario. It's a good reminder of the importance of diversification, and it's worth keeping in mind there's more to life than money, anyway.

Since shareholders are down over the longer term, lets look at the underlying fundamentals over the that time and see if they've been consistent with returns.

View our latest analysis for Articore Group

Given that Articore Group didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. Shareholders of unprofitable companies usually desire strong revenue growth. Some companies are willing to postpone profitability to grow revenue faster, but in that case one would hope for good top-line growth to make up for the lack of earnings.

Over the last three years, Articore Group's revenue dropped 7.8% per year. That's not what investors generally want to see. Having said that the 24% annualized share price decline highlights the risk of investing in unprofitable companies. We're generally averse to companies with declining revenues, but we're not alone in that. Don't let a share price decline ruin your calm. You make better decisions when you're calm.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. So we recommend checking out this free report showing consensus forecasts

A Different Perspective

While the broader market gained around 21% in the last year, Articore Group shareholders lost 36%. 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 12% 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. 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. For example, we've discovered 1 warning sign for Articore Group that you should be aware of before investing here.

Articore Group is not the only stock that insiders are buying. For those who like to find lesser know companies this free list of growing 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 Australian 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.