Shares of Raytheon Technologies Corp. and UnitedHealth are posting strong returns Wednesday afternoon, sending the Dow Jones Industrial Average soaring. Shares of Raytheon Technologies Corp. /zigman2/quotes/203237915/composite RTX +7.45% and UnitedHealth /zigman2/quotes/210453738/composite UNH +1.71% are contributing around two thirds of the blue-chip gauge's intraday rally, as the Dow /zigman2/quotes/210598065/realtime DJIA +2.17% is trading 671 points, or 3.0%, higher. Raytheon Technologies Corp.'s shares have gained $5.56, or 9.6%, while those of UnitedHealth have climbed $17.91, or 7.2%, combining for an approximately 161-point boost for the Dow. Other components contributing significantly to the gain include Dow Inc. /zigman2/quotes/203121064/composite DOW +7.39% , Goldman Sachs /zigman2/quotes/209237603/composite GS +8.96% , and Boeing /zigman2/quotes/208579720/composite BA +5.24% . A $1 move in any one of the 30 components of the Dow results in a 6.86-point swing.