It might be of some concern to shareholders to see the Lam Research Corporation (NASDAQ:LRCX) share price down 16% in the last month. But in stark contrast, the returns over the last half decade have impressed. We think most investors would be happy with the 103% return, over that period. So while it's never fun to see a share price fall, it's important to look at a longer time horizon. Ultimately business performance will determine whether the stock price continues the positive long term trend. While the long term returns are impressive, we do have some sympathy for those who bought more recently, given the 35% drop, in the last year.

Since the long term performance has been good but there's been a recent pullback of 4.2%, let's check if the fundamentals match the share price.

See our latest analysis for Lam Research

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' 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, Lam Research achieved compound earnings per share (EPS) growth of 26% per year. The EPS growth is more impressive than the yearly share price gain of 15% over the same period. Therefore, it seems the market has become relatively pessimistic about the company. This cautious sentiment is reflected in its (fairly low) P/E ratio of 11.01.

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

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

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. We note that for Lam Research the TSR over the last 5 years was 120%, which is better than the share price return mentioned above. This is largely a result of its dividend payments!

A Different Perspective

While the broader market lost about 20% in the twelve months, Lam Research shareholders did even worse, losing 34% (even including dividends). However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. On the bright side, long term shareholders have made money, with a gain of 17% 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. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Like risks, for instance. Every company has them, and we've spotted 3 warning signs for Lam Research (of which 1 is potentially serious!) you should know about.

Lam Research is not the only stock insiders are buying. So take a peek at this free list of growing companies with insider buying.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on US 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.