International Consolidated Airlines Group S.A.'s (LON:IAG) Share Price Boosted 29% But Its Business Prospects Need A Lift Too

Despite an already strong run, International Consolidated Airlines Group S.A. (LON:IAG) shares have been powering on, with a gain of 29% in the last thirty days. The last 30 days bring the annual gain to a very sharp 70%.

Even after such a large jump in price, International Consolidated Airlines Group may still be sending very bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 5.7x, since almost half of all companies in the United Kingdom have P/E ratios greater than 17x and even P/E's higher than 30x are not unusual. However, the P/E might be quite low for a reason and it requires further investigation to determine if it's justified.

International Consolidated Airlines Group certainly has been doing a good job lately as it's been growing earnings more than most other companies. One possibility is that the P/E is low because investors think this strong earnings performance might be less impressive moving forward. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

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How Is International Consolidated Airlines Group's Growth Trending?

International Consolidated Airlines Group's P/E ratio would be typical for a company that's expected to deliver very poor growth or even falling earnings, and importantly, perform much worse than the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 20% last year. Although, its longer-term performance hasn't been as strong with three-year EPS growth being relatively non-existent overall. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Shifting to the future, estimates from the analysts covering the company suggest earnings growth is heading into negative territory, declining 2.0% each year over the next three years. Meanwhile, the broader market is forecast to expand by 13% per annum, which paints a poor picture.

In light of this, it's understandable that International Consolidated Airlines Group's P/E would sit below the majority of other companies. Nonetheless, there's no guarantee the P/E has reached a floor yet with earnings going in reverse. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

The Bottom Line On International Consolidated Airlines Group's P/E

Shares in International Consolidated Airlines Group are going to need a lot more upward momentum to get the company's P/E out of its slump. We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We've established that International Consolidated Airlines Group maintains its low P/E on the weakness of its forecast for sliding earnings, as expected. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

There are also other vital risk factors to consider before investing and we've discovered 1 warning sign for International Consolidated Airlines Group that you should be aware of.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on a low P/E.

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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.