KB Financial Group's (KRX:105560) investors will be pleased with their solid 293% return over the last five years

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But on the bright side, if you buy shares in a high quality company at the right price, you can gain well over 100%. One great example is KB Financial Group Inc. (KRX:105560) which saw its share price drive 201% higher over five years. It's also up 9.5% in about a month. But this could be related to good market conditions -- stocks in its market are up 10% in the last month.

Let's take a look at the underlying fundamentals over the longer term, and see if they've been consistent with shareholders returns.

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There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. 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).

During five years of share price growth, KB Financial Group achieved compound earnings per share (EPS) growth of 13% per year. This EPS growth is lower than the 25% average annual increase in the share price. 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 graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

We know that KB Financial Group has improved its bottom line lately, but is it going to grow revenue? You could check out this free report showing analyst revenue forecasts.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. In the case of KB Financial Group, it has a TSR of 293% for the last 5 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

KB Financial Group's TSR for the year was broadly in line with the market average, at 34%. Most would be happy with a gain, and it helps that the year's return is actually better than the average return over five years, which was 31%. Even if the share price growth slows down from here, there's a good chance that this is business worth watching in the long term. 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. To that end, you should be aware of the 1 warning sign we've spotted with KB Financial Group .

For those who like to find winning investments this free list of undervalued companies with recent insider purchasing, could be just the ticket.

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