Investors can buy low cost index fund if they want to receive the average market return. But in any diversified portfolio of stocks, you'll see some that fall short of the average. That's what has happened with the Great Southern Bancorp, Inc. (NASDAQ:GSBC) share price. It's up 18% over three years, but that is below the market return. In the last year the stock has gained 8.3%.

Since the stock has added US$66m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

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 way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

Great Southern Bancorp was able to grow its EPS at 4.6% per year over three years, sending the share price higher. This EPS growth is lower than the 6% average annual increase in the share price. This indicates that the market is feeling more optimistic on the stock, after the last few years of progress. It is quite common to see investors become enamoured with a business, after a few years of solid progress.

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

It's probably worth noting that the CEO is paid less than the median at similar sized 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. Dive deeper into the earnings by checking this interactive graph of Great Southern Bancorp's earnings, revenue and cash flow.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. 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. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. In the case of Great Southern Bancorp, it has a TSR of 29% for the last 3 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

Great Southern Bancorp shareholders gained a total return of 12% during the year. But that was short of the market average. The silver lining is that the gain was actually better than the average annual return of 4% per year over five year. This suggests the company might be improving over time. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. Even so, be aware that Great Southern Bancorp is showing 1 warning sign in our investment analysis , you should know about...

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: many of them are unnoticed AND have attractive valuation).

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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com