As an investor, mistakes are inevitable. But you want to avoid the really big losses like the plague. So spare a thought for the long term shareholders of Nu Skin Enterprises, Inc. (NYSE:NUS); the share price is down a whopping 86% in the last three years. That'd be enough to cause even the strongest minds some disquiet. And the ride hasn't got any smoother in recent times over the last year, with the price 66% lower in that time. The falls have accelerated recently, with the share price down 43% in the last three months. While a drop like that is definitely a body blow, money isn't as important as health and happiness.

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 Nu Skin Enterprises

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. 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.

Over the three years that the share price declined, Nu Skin Enterprises' earnings per share (EPS) dropped significantly, falling to a loss. Extraordinary items contributed to this situation. Since the company has fallen to a loss making position, it's hard to compare the change in EPS with the share price change. But it's safe to say we'd generally expect the share price to be lower as a result!

The image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

Dive deeper into Nu Skin Enterprises' key metrics by checking this interactive graph of Nu Skin Enterprises's earnings, revenue and cash flow.

A Different Perspective

While the broader market gained around 32% in the last year, Nu Skin Enterprises shareholders lost 64% (even including dividends). However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 13% 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 instance, we've identified 1 warning sign for Nu Skin Enterprises that you should be aware of.

If you are like me, then you will not want to miss this free list of undervalued small caps that insiders are buying.

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