Keysight Technologies (KEYS) stock jumped 5.64% in after-hours trading on Tuesday following the release of better-than-expected second-quarter results and an improved full-year outlook. The electronic measurement company reported revenue of $1.31 billion for the quarter ending April 30, 2025, surpassing analyst estimates of $1.28 billion.

The company's performance was driven by strong growth across multiple segments. Commercial communications and aerospace, defense, and government sales both increased by 9% compared to the previous year. The electronic industrial solutions sector also saw a 5% rise, with growth in semiconductor and general electronics businesses partially offset by declines in automotive and energy sectors.

Keysight's CEO, Satish Dhanasekaran, expressed confidence in the company's outlook, stating, "Even as we are monitoring the overall macroeconomic environment, we continue to see a healthy funnel of opportunities and are raising full-year growth expectations to the midpoint of our long-term 5-7% target." This positive sentiment, combined with the strong quarterly results, appears to have fueled investor enthusiasm, leading to the significant after-hours stock price increase.