Shares of Boeing and Dow Inc. are posting strong returns Friday morning, propelling the Dow Jones Industrial Average into positive territory. Shares of Boeing BA, +1.93% and Dow Inc. DOW, +1.42% are contributing to the index’s intraday rally, as the Dow DJIA, +0.64% is trading 279 points (0.8%) higher. Boeing’s shares are up $7.17 (3.2%) while those of Dow Inc. have climbed $1.14 (1.7%), combining for a roughly 55-point bump for the Dow. UnitedHealth UNH, +1.63%, Walgreens Boots WBA, +1.03%, and Honeywell International Inc. HON, +1.06% are also contributing significantly to the gain. A $1 move in any of the index’s 30 components results in a 6.58-point swing.