Keysight Technologies, Inc. (KEYS) Down 4.6% — Is It Worth Holding Any Longer?
Keysight Technologies, Inc. (KEYS) gave back a meaningful slice of its recent gains on Thursday, closing at $341.07 on the NYSE — a $16.55 decline from the prior close of $357.62. The drop leaves the stock roughly 12.5% below its 52-week high of $389.93, a record it set on October 6, 2026. That a stock can shed that much ground in a little over a week shows how quickly sentiment around AI infrastructure names has shifted.
Volume came in at about 1.36 million shares against a 90-day average of roughly 1.33 million, about 2% above normal. The selling was orderly rather than a rush for the exits, and turnover stayed close to typical levels despite the size of the price decline.
Why Keysight Technologies, Inc. Price is Moving Lower
The most plausible driver is a broader AI-and-technology selloff, not anything specific to Keysight. As of 1:07 p.m. EDT on October 15, the Nasdaq was down 0.4%, the S&P 500 technology sector had fallen 1.1%, and the semiconductor ETF (SOXX) was off about 2%, according to Investopedia. That followed a heavier session on October 14, when the Nasdaq dropped 1.9% and the S&P 500 lost 1.1% after hotter inflation data revived interest-rate fears. Reuters tied the AI-stock rout to concern that higher borrowing costs and debt-funded data-center construction could erode returns. CoreWeave (CRWV) fell about 15% and Oracle (ORCL) nearly 9% on October 14 amid pressure on their debt. Hardware names exposed to the data-center buildout took the brunt of it Thursday. Dell Technologies Inc. (DELL) fell 6.76% and Arista Networks, Inc. (ANET) dropped 5.04%, which puts Keysight's decline squarely in line with its AI-linked peers.
Keysight was especially exposed to that rotation because of how far it had already run. The stock had climbed about 76% year to date before setting its $389.93 record in early October, and Investor's Business Daily noted that it has since slipped below its 21-day average. A rally of that size builds in high expectations, and the stock now trades at a forward P/E of 49.14. When the market starts questioning returns on AI capital spending, shares priced at that kind of premium tend to give back ground first.
The company's own results give little reason for alarm. Keysight's most recent report on August 18 showed adjusted EPS of $3.07 against a $2.48 estimate. Revenue of $1.846 billion beat the $1.75 billion consensus and rose 36.5% from a year earlier. Management guided Q4 2026 revenue to a range of $1.93 billion to $1.95 billion. On October 14, Keysight introduced new 1.6T interconnect-testing equipment aimed squarely at AI data-center demand. The launch reinforces the company's place in that buildout, but it did not shield the shares from the sector-wide selling.
What is the Keysight Technologies, Inc. Rating - Should I Sell?
Weiss Ratings assigns KEYS a B- rating. Current recommendation is Buy. The rating describes a fundamentally strong business, but the minus modifier is a reminder that the stock carries real risk alongside its strengths. Thursday's decline fits that profile. It is a pullback in a well-run company whose valuation leaves little room for shifts in market sentiment.
The Excellent rating on the Growth Index rests on 36.54% revenue growth, an unusually fast pace for a test-and-measurement company. That pace shows how deeply Keysight's equipment is embedded in AI data-center and high-speed interconnect development. The Solvency Index is also rated Excellent, which signals a balance sheet that does not depend on the kind of debt financing now unsettling parts of the AI trade. That distinction matters at a time when borrowing costs are the market's central worry. The Efficiency Index is rated Good, supported by a 20.90% ROE and a 19.08% profit margin. Those figures reflect solid returns on capital for an instrument maker, though they fall short of the standout profitability that would justify a higher mark.
Where the picture becomes more nuanced is in the market-driven measures. The Total Return Index is rated Good, reflecting the roughly 76% gain shareholders have collected this year, though some of that ground has been surrendered since the October 6 peak. The Volatility Index is rated Fair. Thursday's 4.63% slide, driven by the same rate-sensitive AI selloff that hit the broader hardware group, illustrates why that measure is not rated higher. A 12.5% retreat from a record in barely a week is the kind of swing that tempers the overall rating. With a forward P/E near 49, the stock is likely to keep reacting sharply to macro and sector headlines.
Within the Information Technology sector, Keysight trails Amphenol Corporation (APH, A-), which carries a stronger risk/reward profile and fell a more modest 1.45% this Thursday. It also sits just below Apple Inc. (AAPL, B), Cisco Systems, Inc. (CSCO, B), and Dell Technologies Inc. (DELL, B). The gap is narrow, but it suggests Keysight's premium valuation and recent price swings weigh slightly more heavily than they do for those larger peers.
About Keysight Technologies, Inc.
Keysight Technologies (KEYS) is an Information Technology company in the Technology Hardware and Equipment industry. It supplies electronic design, emulation, and test solutions to engineers who develop communications, computing, and electronic systems. Spun off from Agilent Technologies in 2014 and headquartered in Santa Rosa, California, the company traces its roots to the original Hewlett-Packard test and measurement business. Its hardware portfolio includes oscilloscopes, network analyzers, signal analyzers, signal generators, and protocol and interconnect testers, including the recently introduced 1.6T interconnect-testing equipment built for next-generation data-center links.
The business is organized around two main groups. The Communications Solutions Group serves commercial communications customers along with aerospace, defense, and government clients. The Electronic Industrial Solutions Group serves automotive, energy, semiconductor, and general electronics markets. Software is an increasingly important part of the mix. The PathWave design and test software platform, electronic design automation tools, and the Ixia-derived network test and visibility products extend Keysight's reach from early design simulation through manufacturing validation and network security testing.
Keysight's competitive advantage comes from decades of measurement expertise, a broad installed base, and close engagement with customers at the earliest stages of product development. Engineers working on new wireless standards, high-speed optical interconnects, or automotive electronics often build their validation processes around Keysight's tools. That creates switching costs and recurring demand as each new technology generation arrives. The same positioning, however, ties the company's fortunes to research and capital spending cycles in its end markets, which can turn quickly when customers pull back.
Investor Outlook
Keysight Technologies, Inc. (KEYS) carries a Weiss Rating of B- (Buy), backed by strong growth and a sound balance sheet, but a forward P/E near 49 leaves the stock exposed to further swings in AI sentiment and interest-rate expectations. Investors should watch whether Q4 revenue lands within the $1.93 billion to $1.95 billion guidance range, and whether inflation data and AI data-center financing concerns continue to pressure the broader hardware group. See full rankings of all B- rated Information Technology stocks inside the Weiss Stock Screener.
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