What Portillo's Inc.'s (NASDAQ:PTLO) 51% Share Price Gain Is Not Telling You

Portillo's Inc. (NASDAQ:PTLO) shares have had a really impressive month, gaining 51% after a shaky period beforehand. Looking further back, the 14% rise over the last twelve months isn't too bad notwithstanding the strength over the last 30 days.

Since its price has surged higher, Portillo's may be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 36.5x, since almost half of all companies in the United States have P/E ratios under 18x and even P/E's lower than 11x are not unusual. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

Portillo's certainly has been doing a good job lately as it's been growing earnings more than most other companies. It seems that many are expecting the strong earnings performance to persist, which has raised the P/E. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

See our latest analysis for Portillo's

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Portillo's.

What Are Growth Metrics Telling Us About The High P/E?

Portillo's' P/E ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the market.

If we review the last year of earnings growth, the company posted a terrific increase of 53%. The latest three year period has also seen an excellent 601% overall rise in EPS, aided by its short-term performance. So we can start by confirming that the company has done a great job of growing earnings over that time.

Shifting to the future, estimates from the nine analysts covering the company suggest earnings growth is heading into negative territory, declining 21% over the next year. Meanwhile, the broader market is forecast to expand by 15%, which paints a poor picture.

In light of this, it's alarming that Portillo's' P/E sits above the majority of other companies. Apparently many investors in the company reject the analyst cohort's pessimism and aren't willing to let go of their stock at any price. There's a very good chance these shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the negative growth outlook.

The Final Word

Portillo's' P/E is flying high just like its stock has during the last month. It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

We've established that Portillo's currently trades on a much higher than expected P/E for a company whose earnings are forecast to decline. When we see a poor outlook with earnings heading backwards, we suspect the share price is at risk of declining, sending the high P/E lower. Unless these conditions improve markedly, it's very challenging to accept these prices as being reasonable.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 1 warning sign with Portillo's, and understanding should be part of your investment process.

If you're unsure about the strength of Portillo's' business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.