Shares of Amazon.com Inc. and Amgen are retreating Friday afternoon, sending the Dow Jones Industrial Average into negative territory.

Amazon.com Inc. closed $20.40 below its 52-week ... Microsoft Corp. fell 1.57% to $409.54, and Alphabet Inc. Cl C fell 2.47% to $164.39. Trading volume (41.3 M) eclipsed its 50-day average volume ...

Amazon Haul — whose name is a play on social media "hauls," where people show off their purchases — focuses on selling items ...