Dow down 200 points on losses in shares of 3M, Walgreens Boots

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Shares of 3M and Walgreens Boots are retreating Tuesday morning, dragging the Dow Jones Industrial Average into negative territory. Shares of 3M and Walgreens Boots have contributed to the blue-chip gauge's intraday decline, as the Dow was most recently trading 200 points, or 0.6%, lower. 3M's shares have declined $5.97 (4.9%) while those of Walgreens Boots are off $0.84, or 2.3%, combining for an approximately 45-point drag on the Dow. Other components contributing significantly to the decline include Merck Dow and Intel A $1 move in any one of the 30 components of the benchmark results in a 6.59-point swing.