It hasn't been the best quarter for Repligen Corporation (NASDAQ:RGEN) shareholders, since the share price has fallen 27% in that time. On the bright side the share price is up over the last half decade. Unfortunately its return of 79% is below the market return of 95%.

In light of the stock dropping 4.4% in the past week, we want to investigate the longer term story, and see if fundamentals have been the driver of the company's positive five-year return.

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just 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).

Repligen's earnings per share are down 11% per year, despite strong share price performance over five years.

This means it's unlikely the market is judging the company based on earnings growth. Because earnings per share don't seem to match up with the share price, we'll take a look at other metrics instead.

In contrast revenue growth of 23% per year is probably viewed as evidence that Repligen is growing, a real positive. In that case, the company may be sacrificing current earnings per share to drive growth.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

Repligen is well known by investors, and plenty of clever analysts have tried to predict the future profit levels. You can see what analysts are predicting for Repligen in this interactive graph of future profit estimates.

A Different Perspective

Repligen shareholders are down 15% for the year, but the market itself is up 23%. 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 12% per year over half a decade. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. 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. Consider for instance, the ever-present spectre of investment risk. We've identified 3 warning signs with Repligen , and understanding them should be part of your investment process.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

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.