Key Takeaways Keysight Technologies shares soared after the provider of electronic testing products beat quarterly sales and profit estimates. Orders increased from a year ago even as many of Keysight's end markets navigated macroeconomic challenges. The stock is up more than 30% since hitting a 2024 low on Aug. 7. Shares of Keysight Technologies (KEYS) jumped nearly 14%, the best performance of any S&P 500 stock on Wednesday, following a strong quarterly earnings report. Keysight, which supplies engineerin ...