Banks Stumble, Big Tech Tests Resolve and AI Pushes Deeper Into Devices — Market Digest for Oct. 15, 2026

$AMZN $MSFT — Bank of America plunges on heavy volume while Microsoft tests resistance after a sharp rally. Amazon expands its consumer AI hardware lineup as AI and PIM vendors pick up industry recognition. Multiple securities class actions and insider moves add event-driven risk to small- and mid-cap names.