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, you can make far more than 100% on a really good stock. For instance, the price of West African Resources Limited (ASX:WAF) stock is up an impressive 283% over the last five years. In the last week the share price is up 8.0%.

Since the stock has added AU$131m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

View our latest analysis for West African Resources

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

During the last half decade, West African Resources became profitable. Sometimes, the start of profitability is a major inflection point that can signal fast earnings growth to come, which in turn justifies very strong share price gains.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

This free interactive report on West African Resources' earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

A Different Perspective

We're pleased to report that West African Resources shareholders have received a total shareholder return of 62% over one year. Since the one-year TSR is better than the five-year TSR (the latter coming in at 31% per year), it would seem that the stock's performance has improved in recent times. Someone with an optimistic perspective could view the recent improvement in TSR as indicating that the business itself is getting better with 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. Consider for instance, the ever-present spectre of investment risk. We've identified 2 warning signs with West African Resources (at least 1 which is concerning) , and understanding them should be part of your investment process.

But note: West African Resources may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

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

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