Behind losses for shares of Travelers and Walmart, the Dow Jones Industrial Average is declining Tuesday morning. Shares of Travelers TRV, -0.86% and Walmart WMT, -0.80% are contributing to the blue-chip gauge’s intraday decline, as the Dow DJIA, +0.40% was most recently trading 42 points, or 0.1%, lower. Travelers’s shares are down $1.87 (1.4%) while those of Walmart have declined $1.81, or 1.2%, combining for a roughly 24-point drag on the Dow. Other components contributing significantly to the decline include Coca-Cola KO, -1.12%, Visa V, -1.77%, and Merck MRK, -0.42%. A $1 move in any one of the 30 components of the index equates to a 6.58-point swing.