These days it's easy to simply buy an index fund, and your returns should (roughly) match the market. But one can do better than that by picking better than average stocks (as part of a diversified portfolio). For example, the Alliant Energy Corporation (NASDAQ:LNT) share price is up 27% in the last 1 year, clearly besting the market return of around 21% (not including dividends). If it can keep that out-performance up over the long term, investors will do very well! However, the stock hasn't done so well in the longer term, with the stock only up 7.6% in 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.

Check out our latest analysis for Alliant Energy

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...' 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.

Over the last twelve months, Alliant Energy actually shrank its EPS by 5.7%.

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.

Alliant Energy's revenue actually dropped 3.8% over last year. So the fundamental metrics don't provide an obvious explanation for the share price gain.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

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 it makes a lot of sense to check out what analysts think Alliant Energy will earn in the future (free profit 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. 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. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. In the case of Alliant Energy, it has a TSR of 32% for the last 1 year. 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

It's nice to see that Alliant Energy shareholders have received a total shareholder return of 32% over the last year. Of course, that includes the dividend. Since the one-year TSR is better than the five-year TSR (the latter coming in at 4% 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. It's always interesting to track share price performance over the longer term. But to understand Alliant Energy better, we need to consider many other factors. Take risks, for example - Alliant Energy has 2 warning signs (and 1 which is concerning) we think you should know about.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

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.