BOEING CO. $135 (www.boeing.com) is seeing stronger demand for its passenger planes as airlines upgrade their aging fleets with more efficient models. As a result, it has increased its dividend by 50.5%. The new annual rate of $2.92 a share yields 2.2%. Boeing also plans to buy back $10 billion worth of its shares, or about 10% of the total outstanding, over the next three years. Buy.