Lockheed Martin on Tuesday forecast it will make less profit than expected in 2025, as the top U.S. defense company grapples with the delayed rollout of upgrades to the F-35 fighter jet that are vital to its bottom line.

Key Takeaways Defense contractors RTX and Lockheed Martin posted differing results and guidance, sending shares in opposite directions.RTX beat profit and sales forecasts, as all three of its units recorded revenue gains.

Lockheed Martin stock is lower Tuesday after the aerospace giant missed estimates for its fourth quarter and issued a mixed outlook. Here's what to know.

Lockheed Martin forecast 2025 profit that missed Wall Street expectations on Tuesday, as the defense giant grapples with delayed rollouts of a tech upgrade on the F-35, underscoring a cautious tone for the year amid rising global tensions.