Boeing Co. (NYSE:BA) shares are declining on Monday as traders lean defensive in a mixed tape and keep pressure on industrial names, down 0.68%.

The Nasdaq is down 0.06% while the S&P 500 has gained 0.10%, and Industrials (XLI) are slipping 0.16%—a backdrop that helps explain why BA is lagging even with the broader market close to flat.

Boeing, U.S. Navy Complete First MQ-25A Test Flight

Separately, Boeing and the U.S. Navy said Monday they completed the first operational test flight of the MQ-25A Stingray, advancing the program toward carrier deployment.

The unmanned aircraft autonomously taxied, took off, flew, and landed during the two-hour mission while responding to ground control commands. The flight validated navigation, control systems, and integration with the Navy's mission ...