U.S. stock night market volatility: Insiders frequently sell off, Navitas Semiconductor's stock price rises against the trend by 9.32%, attracting attention

U.S. Stock Night Market Movements Navitas Semiconductor rose 9.32% in the night market. Based on recent key news: On December 16, Dipender Saluja, a director of Navitas Semiconductor, reported the sale of company common stock. This move may raise market concerns about insider trading, leading to stock price fluctuations. On December 16, another director, Singh Ranbir, also reported the sale of company shares, involving 179,354 shares at a trading price of $8.68 per share. This series of insider transactions may affect investor confidence, leading to stock price fluctuations. On December 15, Capricorn-Libra Investment Group LP submitted an application to sell restricted securities, involving 873,488 shares. This may raise market concerns about future stock price pressure on the company. The semiconductor industry has seen increased volatility recently and requires attention. Stocks with High Trading Volume in the Industry Nvidia fell 0.24% in the night market. Based on recent key news: On December 15, Nvidia announced the acquisition of AI software company SchedMD, aiming to strengthen its AI ecosystem through open-source technology to address industry competition. This move may affect market expectations for its long-term growth. On December 15, Nvidia held a closed-door summit at its California headquarters to discuss the power shortage issue in data centers. The tight power supply may impact the development of AI facilities, raising market concerns. On December 16, changes in the design of Nvidia's chip cooling system led to delays in the CoreWeave data center project, which may affect its market performance. The surge in demand for AI chips has intensified market volatility. Broadcom rose 0.13% in the night market. Based on recent key news: On December 15, Broadcom's stock price fell after the earnings report due to AI product order backlogs not meeting market expectations, resulting in an 11% drop in stock price. Analysts pointed out that despite record-high sales, the revenue forecast for AI business did not meet market expectations, putting pressure on the stock price. Source: Wall Street Journal On December 16, Broadcom's stock price continued to decline, with a cumulative three-day drop of 17.7%, evaporating over $300 billion in market value. Market concerns about the speed of AI infrastructure construction and related chip demand have intensified, leading to broader impacts on AI concept stocks. Source: Wall Street Journal On December 16, ongoing concerns about a tech stock bubble continued to affect the market, as investors awaited the Federal Reserve's interest rate policy direction and upcoming U.S. employment and inflation data, leading to market sentiment fluctuations. Source: AFP Micron Technology rose 0.50% in the night market. Based on recent key news: On December 15, Wedbush raised Micron Technology's target price from $220 to $300, driving the stock price up. Analysts are optimistic about Micron's long-term prospects, believing its performance will exceed Wall Street expectations On December 16, Needham also raised Micron Technology's target price from $200 to $300, further boosting market confidence. Analysts expect Micron's revenue to grow by 48% year-on-year, reaching $1.29 billion. On December 16, a FactSet survey showed that analysts raised the median estimate for Micron's EPS in 2026 to $18.22, reflecting positive market expectations for its profitability. Demand in the technology sector is strong, with significant capital inflows