Jabil Inc.'s (NYSE:JBL) price-to-earnings (or "P/E") ratio of 9.2x might make it look like a buy right now compared to the market in the United States, where around half of the companies have P/E ratios above 19x and even P/E's above 34x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's limited.

With its earnings growth in positive territory compared to the declining earnings of most other companies, Jabil has been doing quite well of late. It might be that many expect the strong earnings performance to degrade substantially, possibly more than the market, which has repressed the P/E. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

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

Does Growth Match The Low P/E?

The only time you'd be truly comfortable seeing a P/E as low as Jabil's is when the company's growth is on track to lag the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 53% last year. The latest three year period has also seen an excellent 215% overall rise in EPS, aided by its short-term performance. Accordingly, shareholders would have probably welcomed those medium-term rates of earnings growth.

Turning to the outlook, the next year should bring diminished returns, with earnings decreasing 25% as estimated by the seven analysts watching the company. Meanwhile, the broader market is forecast to expand by 15%, which paints a poor picture.

With this information, we are not surprised that Jabil is trading at a P/E lower than the market. However, shrinking earnings are unlikely to lead to a stable P/E over the longer term. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

What We Can Learn From Jabil's P/E?

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 Jabil maintains its low P/E on the weakness of its forecast for sliding earnings, as expected. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. It's hard to see the share price rising strongly in the near future under these circumstances.

And what about other risks? Every company has them, and we've spotted 3 warning signs for Jabil (of which 1 is significant!) you should know about.

If these risks are making you reconsider your opinion on Jabil, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.