How much market value did Nvidia lose on January 27, 2025, the largest single-day loss for any stock in U.S. history?

On January 27, 2025, Nvidia experienced a monumental shift in its market valuation, losing nearly $589 billion in a single trading day. This unprecedented decline marked the largest one-day value wipeout for any company in the history of the U.S. stock market. The dramatic event sent shockwaves through the financial world, highlighting the volatile nature of even the most dominant players in rapidly evolving technological sectors.

The catalyst for this historic downturn was the announcement from DeepSeek, a Chinese artificial intelligence startup. DeepSeek unveiled its R1 AI model, claiming it could achieve performance comparable to leading Western models at a substantially lower cost. This breakthrough immediately raised concerns among investors about the future demand for Nvidia's high-performance graphics processing units (GPUs), which are the bedrock of the company's significant presence in the AI industry. The fear was that a more cost-effective AI solution could diminish the need for Nvidia's expensive hardware.

Nvidia's shares plummeted 17% by the close of trading on that Monday, marking its most significant daily percentage loss since early 2020. This substantial drop not only impacted Nvidia but also triggered broader declines across the semiconductor sector and the wider U.S. technology market, as investors reassessed the competitive landscape and future profitability of AI infrastructure. The event underscored how quickly market sentiment can shift in response to technological advancements and competitive pressures, even for a company at the forefront of innovation.