Shares of Merck and Travelers are seeing declines Wednesday afternoon, dragging the Dow Jones Industrial Average into negative territory. The Dow DJIA, -0.18% was most recently trading 68 points (0.2%) lower, as shares of Merck MRK, -2.69% and Travelers TRV, -1.45% are contributing to the blue-chip gauge’s intraday decline. Merck’s shares have dropped $2.89, or 2.6%, while those of Travelers are down $2.43, or 1.4%, combining for an approximately 35-point drag on the Dow. Other components contributing significantly to the decline include Chevron CVX, -0.63%, McDonald’s MCD, -0.67%, and Verizon VZ, -1.00%. A $1 move in any of the index’s 30 components results in a 6.59-point swing.