Southwest Airlines shares rise 1.34% premarket after introducing a new safety feature on Boeing 737 Max 8.

Southwest Airlines Co. rose 1.34% in premarket trading, with the company taking its first flight with a secondary cockpit barrier to protect pilots from intrusions. This move comes nearly 24 years after the Sept. 11 terror attacks and is part of Southwest's proactive approach to enhancing safety. Additionally, Boeing, which manufactures the aircraft used by Southwest, announced an order for 30 737-8 jets from Macquarie AirFinance, further solidifying the partnership between the two companies.