The Dow Jones Industrial Average is declining Thursday morning with shares of Visa and Chevron seeing the biggest losses for the blue-chip average. Shares of Visa V and Chevron CVX are contributing to the index’s intraday decline, as the Dow DJIA was most recently trading 59 points, or 0.2%, lower. Visa’s shares have fallen $5.69 (2.6%) while those of Chevron are off $2.60 (1.7%), combining for an approximately 55-point drag on the Dow. Dow DOW, Merck MRK, and Walgreens Boots WBA are also contributing significantly to the decline. A $1 move in any of the benchmark’s 30 components equates to a 6.59-point swing.