Unfortunately, investing is risky - companies can and do go bankrupt. But when you pick a company that is really flourishing, you can make more than 100%. For example, the Mercury General Corporation (NYSE:MCY) share price has soared 103% in the last 1 year. Most would be very happy with that, especially in just one year! On top of that, the share price is up 13% in about a quarter. However, the stock hasn't done so well in the longer term, with the stock only up 1.9% in three years.

While the stock has fallen 7.5% this week, it's worth focusing on the longer term and seeing if the stocks historical returns have been driven by the underlying fundamentals.

View our latest analysis for Mercury General

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

During the last year Mercury General grew its earnings per share, moving from a loss to a profit.

When a company has just transitioned to profitability, earnings per share growth is not always the best way to look at the share price action.

However the year on year revenue growth of 18% would help. We do see some companies suppress earnings in order to accelerate revenue growth.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

We're pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. So we recommend checking out this free report showing consensus 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 incorporates the value of any spin-offs or discounted capital raisings, along with any dividends, based on the assumption that the dividends are reinvested. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. In the case of Mercury General, it has a TSR of 109% for the last 1 year. That exceeds its share price return that we previously mentioned. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

We're pleased to report that Mercury General shareholders have received a total shareholder return of 109% over one year. And that does include the dividend. Since the one-year TSR is better than the five-year TSR (the latter coming in at 6% per year), it would seem that the stock's performance has improved in recent times. In the best case scenario, this may hint at some real business momentum, implying that now could be a great time to delve deeper. 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. Consider for instance, the ever-present spectre of investment risk. We've identified 1 warning sign with Mercury General , and understanding them should be part of your investment process.

Of course Mercury General may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

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.