Advanced Energy Industries (AEIS) has been in focus after President and CEO Stephen Douglas Kelley sold 50,000 shares under a Rule 10b5-1 plan, alongside reporting fourth quarter 2025 results and a new LPP200 power supply launch.

At a share price of US$302.02, Advanced Energy Industries has recently seen a 39.26% 90 day share price return and a very large 1 year total shareholder return of 185.08%, suggesting strong momentum despite a softer 30 day share price return.

If this mix of insider activity and product launches has your attention, it could be a good moment to see what else is moving in power and electronics by checking out 24 power grid technology and infrastructure stocks as another potential hunting ground.

With AEIS up 39.26% over 90 days and delivering a very large 1 year total shareholder return of 185.08%, along with strong reported Q4 2025 results, is there still mispricing here or is the market already banking on future growth?

Most Popular Narrative: 8.8% Undervalued

With Advanced Energy Industries closing at $302.02 against a narrative fair value of $331.11, the current price sits below what that narrative implies.

Active expansion of manufacturing capacity and ongoing investments in R&D, together with a disciplined acquisition pipeline, are enhancing AE's product breadth and customer reach, and are presented as setting the stage for accelerated revenue growth, improved operating leverage, and increased long-term earnings.

Want to see what earnings trajectory and margin profile are presented as sitting behind that fair value, and how future multiples are reflected in the story? The full narrative lays out a detailed revenue path, a step change in profitability, and the valuation math that ties those expectations to the $331.11 figure.

Result: Fair Value of $331.11 (UNDERVALUED)

However, the story could look very different if hyperscale data center spending slows, or if tariffs and geopolitical tensions continue to pressure semiconductor related demand and margins.

Another Look Through Earnings Multiples

The narrative fair value points to AEIS looking 8.8% undervalued at $302.02, but the earnings multiple tells a tougher story. The stock trades on a P/E of 76.4x, compared with 66.2x for peers, 28.6x for the wider US Electronic industry, and a fair ratio of 44.3x, which all signal a rich price tag and less room for error. Which story do you think deserves more weight right now: the growth path in the narrative, or the premium multiple you are being asked to pay?

Next Steps

If this mix of momentum, insider moves and valuation signals leaves you undecided, do not wait around. Check the underlying numbers yourself and see what stands out, including the 2 key rewards waiting in our breakdown.

Looking for more investment ideas?

If AEIS has sharpened your focus, do not stop here. Widen your search with a few targeted screens that could surface opportunities you have not considered yet.

• Spot potential mispricings by running your own scan of 48 high quality undervalued stocks that our filters highlight as combining quality with attractive prices.
• Prioritise resilience by checking 68 resilient stocks with low risk scores that our model flags with relatively lower overall risk profiles.
• Hunt for future standouts by reviewing a screener containing 26 high quality undiscovered gems that have strong fundamentals but limited current attention.

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.