Power Integrations (POWI) has entered the AI data center protection conversation after announcing a collaboration with Ideal Power on solid state circuit breakers for 800 VDC rack architectures.
The Power Integrations share price has picked up in the very short term, with a 1-day share price return of 3.32% and a 7-day share price return of 4.89%. This follows a 90-day share price return that declined 33.72%. The recent AI data center collaboration news therefore appears to be landing on a stock where long-term total shareholder returns, including a 3-year total shareholder return down 28.37% and a 5-year total shareholder return down 49.65%, show that sentiment has been pressured. At the same time, the year-to-date share price return of 25.92% and 1-year total shareholder return of 12.74% point to momentum rebuilding from a lower base.
Scan beyond Power Integrations and see how other potential AI infrastructure beneficiaries compare in our curated list of 55 AI infrastructure stocks
Power Integrations now has a fresh AI data center story and a share price that has bounced from pressured levels. The harder part is determining whether that mix of growth angles and scarred long term returns is already reflected in today's valuation.
Most Popular Narrative: 39% Undervalued
On the most followed view, Power Integrations screens cheap, with that narrative pointing to a fair value of $77.50 against a last close of $46.97, which sets a high bar for how its AI and high voltage products play out from here.
Power Integrations' proprietary high-voltage GaN technology, now extending from 750–1700 V up to 2,200 V and reaching into applications that have used silicon carbide, supports premium positioning in higher power systems and has the potential to lift average selling prices and gross margins.
AI data center power opportunities, including auxiliary supplies for NVIDIA’s 800 V racks using 1,700 V InnoMux-2 ICs and a longer-term path into the main GPU power stage within a serviceable data center market sized at about US$1b by 2030, set up new content drivers for revenue and earnings.
See why 10 investors see Power Integrations as 39% undervalued.
Result: Fair Value of $77.50 (UNDERVALUED)
Still, a P/E above 200x, alongside insider selling and ongoing reliance on consumer appliance demand, could quickly challenge the bullish Power Integrations narrative.
Find out about the key risks to this Power Integrations narrative.
Another View: What High P/E Means For Power Integrations
The popular narrative frames Power Integrations as about 39% undervalued on a fair value of $77.50. Yet on plain earnings multiples, the picture is very different. The stock trades on a P/E of 104.7x versus a fair ratio of 36.3x, the US Semiconductor average of 45.3x and a peer average of 35.7x, which points to meaningful valuation risk if expectations slip.
When one method signals upside and another flags a rich price tag, which framework do you trust more for a business still working through earnings volatility and one off items, and why now?
See what the numbers say about this price — find out in our valuation breakdown.
Next Steps
Mixed signals on Power Integrations so far. If the contrasting P/E and fair value stories have you on the fence, move quickly, review the full set of numbers, and weigh both the risks and the upside using our breakdown of 2 key rewards and 3 important warning signs
Looking for more investment ideas beyond Power Integrations?
Do not stop your research with Power Integrations. The market rarely rewards hesitation, and you do not want to miss stronger fits for your own plan.
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