There's no doubt that investing in the stock market is a truly brilliant way to build wealth. But if when you choose to buy stocks, some of them will be below average performers. Over the last year the BOK Financial Corporation (NASDAQ:BOKF) share price is up 23%, but that's less than the broader market return. However, the longer term returns haven't been so impressive, with the stock up just 3.5% in the last three years.

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

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

During the last year, BOK Financial actually saw its earnings per share drop 25%.

This means it's unlikely the market is judging the company based on earnings growth. Indeed, when EPS is declining but the share price is up, it often means the market is considering other factors.

Revenue was pretty stable on last year, so deeper research might be needed to explain the share price rise.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

We consider it positive that insiders have made significant purchases in the last year. Even so, future earnings will be far more important to whether current shareholders make money. This free report showing analyst forecasts should help you form a view on BOK Financial

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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. As it happens, BOK Financial's TSR for the last 1 year was 26%, which exceeds the share price return mentioned earlier. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

BOK Financial provided a TSR of 26% over the year (including dividends). That's fairly close to the broader market return. 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 5%. 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. 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. Take risks, for example - BOK Financial has 1 warning sign we think you should be aware of.

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of growing companies that insiders are buying.

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.