Ideally, your overall portfolio should beat the market average. But every investor is virtually certain to have both over-performing and under-performing stocks. At this point some shareholders may be questioning their investment in John B. Sanfilippo & Son, Inc. (NASDAQ:JBSS), since the last five years saw the share price fall 16%. The falls have accelerated recently, with the share price down 12% in the last three months. We note that the company has reported results fairly recently; and the market is hardly delighted. You can check out the latest numbers in our company report.

Now let's have a look at the company's fundamentals, and see if the long term shareholder return has matched the performance of the underlying business.

View our latest analysis for John B. Sanfilippo & Son

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

While the share price declined over five years, John B. Sanfilippo & Son actually managed to increase EPS by an average of 3.2% per year. Given the share price reaction, one might suspect that EPS is not a good guide to the business performance during the period (perhaps due to a one-off loss or gain). Alternatively, growth expectations may have been unreasonable in the past.

Given that EPS has increased, but the share price has fallen, it's fair to say that market sentiment around the stock has become more negative. Having said that, if the EPS gains continue we'd expect the share price to improve, longer term.

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

This free interactive report on John B. Sanfilippo & Son's earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

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, John B. Sanfilippo & Son's TSR for the last 5 years was 2.8%, which exceeds the share price return mentioned earlier. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

John B. Sanfilippo & Son shareholders are down 9.6% for the year (even including dividends), but the market itself is up 33%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. On the bright side, long term shareholders have made money, with a gain of 0.5% per year over half a decade. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. 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 instance, we've identified 1 warning sign for John B. Sanfilippo & Son that you should be aware of.

Of course John B. Sanfilippo & Son may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

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.