Investors in Electro Optic Systems Holdings (ASX:EOS) have unfortunately lost 86% over the last three years

It's not possible to invest over long periods without making some bad investments. But really bad investments should be rare. So spare a thought for the long term shareholders of Electro Optic Systems Holdings Limited (ASX:EOS); the share price is down a whopping 86% in the last three years. That would certainly shake our confidence in the decision to own the stock. And the share price decline continued over the last week, dropping some 10.0%. 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.

See our latest analysis for Electro Optic Systems Holdings

Because Electro Optic Systems Holdings made a loss in the last twelve months, we think the market is probably more focussed on revenue and revenue growth, at least for now. Shareholders of unprofitable companies usually expect strong revenue growth. That's because fast revenue growth can be easily extrapolated to forecast profits, often of considerable size.

Over the last three years, Electro Optic Systems Holdings' revenue dropped 7.8% per year. That's not what investors generally want to see. Having said that the 23% annualized share price decline highlights the risk of investing in unprofitable companies. This business clearly needs to grow revenues if it is to perform as investors hope. There's no more than a snowball's chance in hell that share price will head back to its old highs, in the short term.

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

We like that insiders have been buying shares in the last twelve months. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. This free report showing analyst forecasts should help you form a view on Electro Optic Systems Holdings

A Different Perspective

It's nice to see that Electro Optic Systems Holdings shareholders have received a total shareholder return of 51% over the last year. There's no doubt those recent returns are much better than the TSR loss of 11% per year over five years. We generally put more weight on the long term performance over the short term, but the recent improvement could hint at a (positive) inflection point within the business. 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. Case in point: We've spotted 1 warning sign for Electro Optic Systems Holdings you should be aware of.

Electro Optic Systems Holdings is not the only stock that insiders are buying. For those who like to find winning investments 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.