Dragged down by declines for shares of JPMorgan Chase and Walgreens Boots, the Dow Jones Industrial Average is in selloff mode Thursday afternoon. The Dow DJIA was most recently trading 532 points, or 1.6%, lower, as shares of JPMorgan Chase JPM and Walgreens Boots WBA are contributing to the index’s intraday decline. JPMorgan Chase’s shares have declined $8.02, or 5.8%, while those of Walgreens Boots are off $1.13, or 3.3%, combining for an approximately 60-point drag on the Dow. Other components contributing significantly to the decline include Boeing BA, Walt Disney DIS, and Caterpillar CAT. A $1 move in any one of…