Coherent Corp. (NYSE:COHR) shareholders might understandably be very concerned that the share price has dropped 36% in the last quarter. But in stark contrast, the returns over the last half decade have impressed. Indeed, the share price is up an impressive 170% in that time. We think it's more important to dwell on the long term returns than the short term returns. Only time will tell if there is still too much optimism currently reflected in the share price.

While this past week has detracted from the company's five-year return, let's look at the recent trends of the underlying business and see if the gains have been in alignment.

Check out our latest analysis for Coherent

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Coherent has made a profit in the past. On the other hand, it reported a trailing twelve months loss, suggesting it isn't reliably profitable. So it might be better to look at other metrics to try to understand the share price.

In contrast revenue growth of 18% per year is probably viewed as evidence that Coherent is growing, a real positive. In that case, the company may be sacrificing current earnings per share to drive growth.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

We consider it positive that insiders have made significant purchases in the last year. Having said that, most people consider earnings and revenue growth trends to be a more meaningful guide to the business. So it makes a lot of sense to check out what analysts think Coherent will earn in the future (free profit forecasts).

A Different Perspective

Coherent shareholders are up 2.1% for the year. But that return falls short of the market. If we look back over five years, the returns are even better, coming in at 22% per year for five years. It's quite possible the business continues to execute with prowess, even as the share price gains are slowing. If you want to research this stock further, the data on insider buying is an obvious place to start. You can click here to see who has been buying shares - and the price they paid.

Coherent is not the only stock that insiders are buying. For those who like to find lesser know companies 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 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.