For the second time in the last month, a Chinese app has skyrocketed to the top spot in Apple’s App Store. The first was Xiaohongshu, or RedNote, which saw a sudden surge in downloads by United States users seeking an alternative to TikTok in anticipation of the ban on that app,

Nvidia shares closed down almost 17%, posting its biggest drop since March 2020 and erasing nearly $600 billion from the company's market cap. Broadcom fell 17.4%, and other chip stocks like Micron declined 11.

Chinese AI startup DeepSeek rocked the U.S. tech sector by releasing an AI model that appeared to rival those built by leading AI labs—at a fraction of the price.

Nvidia shares' 9% recovery Tuesday was the second-best day in terms of market cap added for any company ever—but the company faced another selloff Wednesday.

Chip stocks in the U.S. and Europe rose on Wednesday for a second straight day, recovering from a punishing selloff triggered by China's low-cost DeepSeek artificial intelligence tool at the start of the week.