Is Keysight Technologies (KEYS) Undervalued Following Strong Earnings And Q4 Revenue Guidance?

Why Keysight Technologies stock is back in focus after earnings and guidance

Keysight Technologies (KEYS) is drawing investor attention after reporting third quarter and nine month 2026 results alongside new fourth quarter revenue guidance. The combination of recent earnings data and forward outlook is now under closer scrutiny.

At a share price of US$319.97, Keysight Technologies has seen short term momentum cool a little, with the share price slipping 1.80% over the past day, even as the 7 day share price return is up 3.00% and year to date share price return sits at 54.88%.

That move comes after a run of company specific events in August, including stronger third quarter earnings, new fourth quarter revenue guidance, expanded customer adoption of Keysight EDA software at AttoTude, a special call with Dell Technologies and The Siemon Company, and the appointment of Scott Reese to the board.

Over a longer horizon the stock has rewarded patient holders, with a 1 year total shareholder return of 95.78% and a 3 year total shareholder return of 139.00% that are contributing to a reassessment of Keysight Technologies by investors following the latest results and outlook.

Spot opportunities by riding the same test and measurement demand that just put Keysight Technologies back in focus by scanning our curated list of 56 AI infrastructure stocks.

Keysight Technologies now trades well below the average analyst target and at a smaller discount to one intrinsic value estimate. After the latest earnings jump, where does a reasonable view of fair value really land?

Most Popular Narrative: 22.9% Undervalued

The most followed narrative currently pegs Keysight Technologies at a fair value of about $415, compared with the last close at $319.97, which puts the focus firmly on the assumptions behind that gap.

Adoption of AI across digital infrastructure is accelerating demand for advanced testing solutions in compute, memory, networking, and interconnect. Keysight's AI-focused investments are described as leading to double-digit wireline and commercial comms growth. This trend is expected to drive sustained top-line revenue growth as AI workloads expand into new customer segments and applications over the coming years.

Read the complete narrative. Read the complete narrative.

Want to see what sits underneath that AI and data center story? The narrative leans on a specific blend of revenue growth, rising margins and a richer earnings base. The numbers behind those assumptions are where the $415 fair value really comes from.

Result: Fair Value of $415.08 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, the Keysight Technologies story still hinges on AI data center spending and tariff mitigation, which could both fall short of the assumptions in that 22.9% undervalued narrative.

Find out about the key risks to this Keysight Technologies narrative.

Another View on Keysight Technologies Valuation

The analyst narrative leans on future earnings and a target fair value of about $415, which leaves Keysight Technologies looking 22.9% undervalued on those assumptions. The current P/E of 42.6x tells a different story. It sits above the fair ratio of 36.6x, the US Electronic industry at 29.5x and the peer average of 42.1x. That points to a richer price tag today on earnings. This raises the question of how much weight to place on the growth narrative compared with the price being paid at present.

See what the numbers say about this price — find out in our valuation breakdown.

Next Steps

With both risks and rewards in the mix for Keysight Technologies, it helps to cut through the noise quickly and base your view on the underlying data. To see the balance of concerns and positives in one place, take a close look at the 4 key rewards and 1 important warning sign.

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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.

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