When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") below 18x, you may consider Lam Research Corporation (NASDAQ:LRCX) as a stock to potentially avoid with its 22.6x P/E ratio. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's as high as it is.

Lam Research certainly has been doing a good job lately as it's been growing earnings more than most other companies. The P/E is probably high because investors think this strong earnings performance will continue. If not, then existing shareholders might be a little nervous about the viability of the share price.

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Lam Research.

What Are Growth Metrics Telling Us About The High P/E?

The only time you'd be truly comfortable seeing a P/E as high as Lam Research's is when the company's growth is on track to outshine the market.

If we review the last year of earnings growth, the company posted a worthy increase of 5.7%. The solid recent performance means it was also able to grow EPS by 5.5% in total over the last three years. Therefore, it's fair to say the earnings growth recently has been respectable for the company.

Turning to the outlook, the next three years should generate growth of 16% each year as estimated by the analysts watching the company. With the market only predicted to deliver 11% each year, the company is positioned for a stronger earnings result.

With this information, we can see why Lam Research is trading at such a high P/E compared to the market. Apparently shareholders aren't keen to offload something that is potentially eyeing a more prosperous future.

The Key Takeaway

Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

As we suspected, our examination of Lam Research's analyst forecasts revealed that its superior earnings outlook is contributing to its high P/E. At this stage investors feel the potential for a deterioration in earnings isn't great enough to justify a lower P/E ratio. Unless these conditions change, they will continue to provide strong support to the share price.

Many other vital risk factors can be found on the company's balance sheet. You can assess many of the main risks through our free balance sheet analysis for Lam Research with six simple checks.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on a low P/E.

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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.