U.S. stock night trading volatility: Wolfspeed fell 8.50% in after-hours trading, as high valuations and negative gross margins triggered a crisis of investor confidence

U.S. Stock Night Market Movements Wolfspeed fell 8.50% in the night market. Based on recent news, On May 14, Wolfspeed's quarterly financial report showed a non-GAAP gross margin of negative 21%, and management expects the gross margin to remain negative in the fourth quarter. This indicates that the company is still experiencing structural losses, leading to a decline in investor confidence and a drop in stock price. On May 13, Citrini Research released a report emphasizing Wolfspeed's key position in AI infrastructure but also pointed out that its high valuation has already reflected optimistic expectations for the next 2 to 3 years. The market has doubts about its ability to achieve profitability, further exacerbating stock price volatility. On May 13, after seven consecutive trading days of gains, Wolfspeed's stock price corrected due to investor concerns over its high valuation and overbought status. The AI investment boom has driven volatility in the chip industry. Stocks with High Trading Volume in the Industry Micron Technology fell 4.93% in the night market. Based on recent news, On May 12, Micron announced it had sent samples of its 256GB DDR5 server modules to key partners, utilizing the most advanced 1-gamma process, with speeds of up to 9,200 MT/s. This product directly addresses the energy-saving needs of next-generation AI data centers, driving up stock prices. On May 12, Samsung Electronics and the union failed to reach a consensus in their labor dispute, with union members indicating a full strike, which could lead to a 3% reduction in global memory chip production, further supporting Micron's stock price. On May 13, Micron's stock price saw a market capitalization evaporate by about $100 billion at Tuesday's low, but chip bulls chose to buy on dips, pushing the stock price back up. AI-driven memory demand has restored confidence in the semiconductor industry. Nvidia fell 2.06% in the night market. Based on recent key news: On May 13, Nvidia CEO Jensen Huang visited China with U.S. President Trump, and the market was optimistic about semiconductor sales prospects, driving up stock prices. Nvidia's H200 chip has not yet been sold in China, and the market hopes this visit will improve sales licensing issues. On May 13, Wells Fargo raised Nvidia's target price to $315, emphasizing the connection between AI demand and global data center construction, believing Nvidia's profit prospects are durable and that the stock price may be undervalued. On May 12, Nvidia's stock price rose 14% over the past four trading days, with a market capitalization increase of $591 billion, reflecting strong market recognition of its chip demand. Strong AI demand presents an optimistic outlook for the semiconductor industry. Intel fell 6.22% in the night market. Based on recent key news: On May 12, the U.S. semiconductor sector saw a significant decline, with Intel's stock price dropping 8%. The market's expectations for a reversal in the Nasdaq index intensified selling pressure, leading to pressure on Intel's stock price.【Source: Anhui Traffic Radio】 On May 12th, Intel's stock price soared 214% in six weeks, with a market value increase of over $440 billion. Despite short sellers losing $12 billion, doubts about a future pullback remain in the market. [Source: Yushan.AI] On May 12th, Intel's first-quarter performance exceeded expectations, leading analysts to collectively raise their target prices. Deutsche Bank raised its target price from $63 to $100, driving stock price fluctuations. The semiconductor industry is facing valuation pressure, and market volatility has intensified