Keysight Technologies, Inc. (KEYS) gained 2.10% on Tuesday, September 22, 2026, closing at $342.03. The move extended a broader rally for the electronic measurement company, which has now risen 8.60% over the past seven days.
Over the trailing 30-day period, KEYS has advanced 8.20%, reflecting sustained buying pressure across that timeframe. The company's market capitalization stood at $57.03 billion as of the close.
The back-to-back gains across the one-week and one-month windows suggest consistent upward momentum in the stock, though Tuesday's single-session move of 2.10% represents the most recent incremental step in that trend.
Keysight Technologies designs and manufactures electronic test and measurement equipment and software, serving markets including communications, aerospace, and semiconductor manufacturing.
