Boeing Company (BA) announced Tuesday that Aviation Capital Group LLC has committed to purchasing 50 additional 737 MAX aircraft, with the order evenly divided between 25 of the 737-8 jets and 25 of the 737-10 jets.

Growing Order Book

The new purchase brings ACG's total Boeing 737 MAX order book to 121 aircraft. Notably, ACG now holds 50 firm orders for the 737-10, making it the lessor with the largest 737-10 order book in the industry.

The 737 MAX lineup has become a go-to choice for airlines looking for fuel efficiency and flexibility on short- and medium-haul routes, which makes it particularly attractive for leasing companies like ACG that serve a diverse roster of airline clients.

Across the leasing sector, the 737 MAX has proven popular. Lessors have ordered nearly 1,300 of these jets to date, accounting for about one-fifth of Boeing's total 737 MAX backlog.

What the Executives Are Saying

Brad McMullen, Boeing's senior vice president of Commercial Sales and Marketing, said, "With this repeat order, ACG continues to be an established and highly valued partner on the 737 MAX program and we look forward to deepening this relationship in the coming years as we deliver its first 737-10 airplanes."

Thomas Baker, chief executive officer and president of ACG, added, "We are pleased to be able to offer our global customers a continuous stream of 737 MAX delivery positions from 2026 to 2033 to support their growth, as well as the versatility of both the 737-8 and 737-10 variants."

Boeing is scheduled to release its fourth quarter 2025 earnings on January 27.

Recent Alaska Airlines Win

This latest order follows another major win for Boeing in January, when Alaska Air Group, Inc. (ALK) placed its largest aircraft order in company history.

Alaska agreed to purchase 105 Boeing 737-10 jets, the biggest variant in the 737 MAX family, along with five Boeing 787 Dreamliners. The deal represented a significant vote of confidence in Boeing's flagship narrowbody program.

BA Price Action: Boeing shares were down 0.27% at $239.17 during premarket trading on Tuesday. The stock is trading near its 52-week high of $242.68.