Shares of Dow Inc. and Pfizer are seeing declines Friday morning, sending the Dow Jones Industrial Average into negative territory. The Dow /zigman2/quotes/210598065/realtime DJIA -3.56% was most recently trading 29 points (0.1%) lower, as shares of Dow Inc. /zigman2/quotes/203121064/composite DOW -4.27% and Pfizer /zigman2/quotes/202877789/composite PFE -2.94% have contributed to the blue-chip gauge's intraday decline. Dow Inc.'s shares are off $1.71 (3.4%) while those of Pfizer have fallen $0.68, or 1.7%, combining for an approximately 16-point drag on the Dow. Other components contributing significantly to the decline include JPMorgan Chase /zigman2/quotes/205971034/composite JPM -2.69% , Merck /zigman2/quotes/209956077/composite MRK -1.23% , and Goldman Sachs /zigman2/quotes/209237603/composite GS -2.64% . A $1 move in any one of the 30 components of the index results in a 6.78-point swing.