Qualcomm (NASDAQ:QCOM) closed down 7.17% at $187.48 on Monday, September 28, 2026. The company supplies mobile and connectivity chips used in smartphones and increasingly in automotive and edge-computing markets.
On Monday, September 28, 2026, Roblox (NYSE:RBLX) fell 9.86% to finish at $41.86. The company operates an online gaming and user-generated-content platform.
On Monday, September 28, 2026, NetEase (NASDAQ:NTES) rose 4.88% to finish at $121.04. The company is one of China's largest internet and video-game companies, best known for developing and operating online games.
On Monday, September 28, 2026, Jinxin Technology Holding (NASDAQ:NAMI), a penny stock, jumped 40.88% to finish at $2.24. The China-linked company has US-listed shares with a limited float.
On Monday, September 28, 2026, Mint Incorporation (NASDAQ:MIMI), a penny stock, climbed 16.93% to finish at $0.90. The company is a sub-dollar, low-float micro-cap.
Shares of MongoDB (NASDAQ:MDB) ended Monday, September 28, 2026 lower by 18.46%, at $334.68. The database company's CEO, Chirantan Desai, resigned with immediate effect to join Meta Platforms (NASDAQ:META), and former CEO Dev Ittycheria returned as interim chief executive.
Navitas Semiconductor (NASDAQ:NVTS) announced on September 28 that it has been selected by the U.S. Army Research Laboratory, part of the Army Combat Capabilities Development Command, for the ALATTIS program, short for Accelerated, Large-Area, 10 kV SiC IGBT. The work covers next-generation 10 kV …
Micron (NASDAQ:MU), Sandisk (NASDAQ:SNDK), Western Digital (NASDAQ:WDC) and Seagate (NASDAQ:STX) all slid on Monday, September 28, as AI jitters and soaring yields hit the memory trade just ahead of its biggest event of the week.
While most of tech sank on Monday, September 28, Palo Alto Networks (NASDAQ:PANW) and CrowdStrike (NASDAQ:CRWD) climbed as AI safety jumped to the top of the agenda.
● Skyworks Solutions (SWKS) closed at $87.59 on Monday, down 1.96% from $89.34, a smaller decline than many chipmakers.