Passive investing in index funds can generate returns that roughly match the overall market. But in our experience, buying the right stocks can give your wealth a significant boost. For example, the ScanSource, Inc. (NASDAQ:SCSC) share price is 88% higher than it was five years ago, which is more than the market average. It's also good to see a healthy gain of 58% in the last year.

Since the stock has added US$86m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. 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.

Over half a decade, ScanSource managed to grow its earnings per share at 4.3% a year. This EPS growth is slower than the share price growth of 13% per year, over the same period. This suggests that market participants hold the company in higher regard, these days. That's not necessarily surprising considering the five-year track record of earnings growth.

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

It might be well worthwhile taking a look at our free report on ScanSource's earnings, revenue and cash flow.

A Different Perspective

We're pleased to report that ScanSource shareholders have received a total shareholder return of 58% over one year. That gain is better than the annual TSR over five years, which is 13%. Therefore it seems like sentiment around the company has been positive lately. Someone with an optimistic perspective could view the recent improvement in TSR as indicating that the business itself is getting better with time. It's always interesting to track share price performance over the longer term. But to understand ScanSource better, we need to consider many other factors. Consider for instance, the ever-present spectre of investment risk. We've identified 1 warning sign with ScanSource , and understanding them should be part of your investment process.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will 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.