Shares of Boeing Co. /zigman2/quotes/208579720/composite BA -6.04% rose 1.7% in premarket trading Tuesday, after the aerospace and defense giant announced a new order for up to 66 737 MAX jets from investment firm 777 Partners. Financial terms for the order were not disclosed. The order includes a firm order for 30 737-8-200s, which Boeing says is the "most fuel-efficient jet" in its class. 777 Partners has invested in the 737 MAX to launch low-cost air carriers, such as Canada's Flair Airlines and Bonza Airlines in Australia. "777 Partners is leveraging the cost efficiencies of the 737-8 and 737-8-200 for its diverse network of airlines, while also providing an excellent passenger experience and meeting sustainability goals," said Stan Deal, Chief Executive of Boeing Commercial Airplanes. Boeing's stock has dropped 20.6% over the past three months through Monday while the Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA -1.54% has lost 11.0%.