AAR (AIR) is back in focus after a packed March, with third quarter earnings, higher full year sales guidance, and two long term U.S. Air Force pallet contracts worth up to $450 million.

The recent 3.8% 1 day share price return and 10.5% 7 day share price return, on top of a 35.0% year to date share price return and 132.8% 1 year total shareholder return, suggest momentum has been building around AAR as investors react to the stronger earnings, higher sales guidance and long term U.S. Air Force pallet contracts.

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After that kind of share price run, the key question is whether AAR’s recent contracts, earnings and guidance still leave room for upside, or if the market is already pricing in much of the future growth story.

Most Popular Narrative: 12% Undervalued

AAR’s most followed valuation narrative pegs fair value at $129 per share, compared to the last close at $114, which frames the recent share price strength in a different light.

The commercialization of additional MRO capacity in Oklahoma City and Miami, both already sold out before opening, positions AAR to capitalize on the expected long-term rise in global air travel and the need for ongoing maintenance of aging aircraft fleets, supporting robust revenue growth and improved earnings visibility. AAR's strong growth in new parts Distribution directly aligns with increasing demand for resilient supply chains and more diversified inventory management from both commercial and government customers, indicating sustained future revenue expansion and potential for higher margins.

Want to see what kind of revenue ramp, margin lift, and future earnings multiple are baked into that $129 view? The narrative spells out a detailed playbook, including how maintenance capacity, government work and software are expected to work together to justify that price tag.

Result: Fair Value of $129 (UNDERVALUED)

However, that upside story still relies on commercial aviation demand holding up, and on AAR keeping pace as OEMs and new technologies challenge traditional MRO and parts models.

Another Take: Multiples Paint A Richer Picture

While the popular narrative sees AAR as 12% undervalued at $129, the current P/E of 26.2x sits above its own fair ratio of 24.7x, yet below the US Aerospace & Defense average of 35.9x and peer average of 79.5x. This raises a key question: is this a premium worth paying, or a margin of safety in disguise?

Next Steps

Given the mixed signals around AAR, it helps to move quickly and stress test the story against both the red flags and the potential upside using 3 key rewards and 2 important warning signs

Looking for more investment ideas?

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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.