Shares of American Express and Boeing are seeing declines Tuesday afternoon, dragging the Dow Jones Industrial Average into negative territory. The Dow DJIA, -0.31% was most recently trading 193 points lower (-0.5%), as shares of American Express AXP, -3.40% and Boeing BA, -2.43% are contributing to the index’s intraday decline. American Express’s shares have dropped $6.56, or 2.8%, while those of Boeing are off $4.91 (2.6%), combining for a roughly 75-point drag on the Dow. Other components contributing significantly to the decline include JPMorgan Chase JPM, -2.63%, Travelers TRV, -1.69%, and Goldman Sachs GS, -2.05%. A $1 move in any of the benchmark’s 30 components equates to a 6.57-point swing.