In order to justify the effort of selecting individual stocks, it's worth striving to beat the returns from a market index fund. But the risk of stock picking is that you will likely buy under-performing companies. We regret to report that long term Ingevity Corporation (NYSE:NGVT) shareholders have had that experience, with the share price dropping 48% in three years, versus a market return of about 16%. And the ride hasn't got any smoother in recent times over the last year, with the price 32% lower in that time. Unfortunately the share price momentum is still quite negative, with prices down 33% in thirty days.

With the stock having lost 20% in the past week, it's worth taking a look at business performance and seeing if there's any red flags.

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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 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.

We know that Ingevity has been profitable in the past. On the other hand, it reported a trailing twelve months loss, suggesting it isn't reliably profitable. Other metrics may better explain the share price move.

With revenue flat over three years, it seems unlikely that the share price is reflecting the top line. There doesn't seem to be any clear correlation between the fundamental business metrics and the share price. That could mean that the stock was previously overrated, or it could spell opportunity now.

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

We're pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. It's always worth keeping an eye on CEO pay, but a more important question is whether the company will grow earnings throughout the years. If you are thinking of buying or selling Ingevity stock, you should check out this free report showing analyst profit forecasts .

A Different Perspective

While the broader market lost about 2.4% in the twelve months, Ingevity shareholders did even worse, losing 32%. Having said that, it's inevitable that some stocks will be oversold in a falling market. The key is to keep your eyes on the fundamental developments. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 4% over the last half decade. 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. It's always interesting to track share price performance over the longer term. But to understand Ingevity better, we need to consider many other factors. For example, we've discovered 1 warning sign for Ingevity that you should be aware of before investing here.

We will like Ingevity better if we see some big insider buys. While we wait, check out this free list of undervalued stocks (mostly small caps) with considerable, recent, insider 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.