Keysight Technologies stock traded around USD 338.64 on the New York Stock Exchange as of September 12, 2026, up from a prior close of USD 325.65, a gain of about 4 percent, with an intraday range between USD 331.51 and USD 339.18 and a 52-week range between USD 158.79 and USD 374.96. The test and measurement specialist highlights growing demand from AI data centers and high-speed optical infrastructure ahead of industry demonstrations in late September 2026. According to a September 19, 2026 article, Keysight sees AI data-center demand driving strong growth in its wireline business, particularly for 1.6T and emerging 3.2T networking, silicon photonics, co-packaged optics and system-level testing solutions, positioning it as a supplier for hyperscale and cloud operators. Keysight plans to showcase end-to-end solutions for scaling AI infrastructure at the European Conference on Optical Communication (ECOC) 2026, taking place from September 21 to September 23, 2026 in Málaga, Spain. According to a guidance summary cited in an institutional ownership report dated September 20, 2026, Keysight set Q4 2026 earnings per share guidance in a range of USD 3.34 to USD 3.40 and reaffirmed full-year 2026 EPS guidance at around USD 11.46. A recent comparative overview lists