It might be of some concern to shareholders to see the Pfizer Inc. (NYSE:PFE) share price down 19% in the last month. But the silver lining is the stock is up over five years. Unfortunately its return of 20% is below the market return of 54%.

View our latest analysis for Pfizer

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. 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 five years of share price growth, Pfizer achieved compound earnings per share (EPS) growth of 6.6% per year. This EPS growth is higher than the 3.7% average annual increase in the share price. So one could conclude that the broader market has become more cautious towards the stock.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

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. In the case of Pfizer, it has a TSR of 43% for the last 5 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

Investors in Pfizer had a tough year, with a total loss of 15% (including dividends), against a market gain of about 1.7%. 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. On the bright side, long term shareholders have made money, with a gain of 7.5% 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. If you would like to research Pfizer in more detail then you might want to take a look at whether insiders have been buying or selling shares in the company.

Of course Pfizer 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 US exchanges.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.