Ambac Financial Group, Inc. (NYSE:AMBC) shareholders should be happy to see the share price up 12% in the last month. But that doesn't change the fact that the returns over the last five years have been less than pleasing. In fact, the share price is down 27%, which falls well short of the return you could get by buying an index fund.

So let's have a look and see if the longer term performance of the company has been in line with the underlying business' progress.

Check out our latest analysis for Ambac Financial Group

Given that Ambac Financial Group didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. Some companies are willing to postpone profitability to grow revenue faster, but in that case one does expect good top-line growth.

Over half a decade Ambac Financial Group reduced its trailing twelve month revenue by 22% for each year. That puts it in an unattractive cohort, to put it mildly. It seems pretty reasonable to us that the share price dipped 5% per year in that time. This loss means the stock shareholders are probably pretty annoyed. Risk averse investors probably wouldn't like this one much.

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

It's good to see that there was some significant insider buying in the last three months. That's a positive. That said, we think earnings and revenue growth trends are even more important factors to consider. You can see what analysts are predicting for Ambac Financial Group in this interactive graph of future profit estimates.

A Different Perspective

Ambac Financial Group shareholders are up 1.3% for the year. Unfortunately this falls short of the market return. On the bright side, that's still a gain, and it is certainly better than the yearly loss of about 5% endured over half a decade. It could well be that the business is stabilizing. It's always interesting to track share price performance over the longer term. But to understand Ambac Financial Group better, we need to consider many other factors. Take risks, for example - Ambac Financial Group has 2 warning signs we think you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: insiders have been buying them).

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