U.S. stock market update: J-Star's earnings report fell short of expectations, with soaring operating costs causing a 21.01% drop in stock price

U.S. Stock Market Midday Update J-Star fell 21.01%, with increased trading volume. Based on recent key news: On December 18, J-Star Holding Co., Ltd. announced its semi-annual financial report, showing a revenue increase of 30.7% to $10.6 million, but due to a 47.6% rise in operating expenses, operating income dropped by 75.3%. This financial performance raised market concerns, leading to a significant drop in stock price. On December 18, the company announced a focus on U.S. manufacturing to improve inventory management and reduce costs. Although this strategy may be beneficial in the long term, it failed to alleviate investors' concerns about financial pressure in the short term, further exacerbating stock price volatility. On December 18, J-Star Holding Co., Ltd.'s net profit was only $5,000, far below market expectations. Low profit margins and high operating costs raised doubts among investors about the company's profitability, leading to a decline in stock price. The industry is facing cost pressures, with significant capital outflows. Stocks with High Trading Volume in the Industry Vision Marine Tech rose 8.75%. Based on recent key news: On December 17, Vision Marine Technologies announced details of its public offering pricing. This move attracted market attention, driving the stock price up by 8.75%. The company has significant influence in the high-pressure electric boat propulsion system sector, attracting investor interest. Source: Montreal reports growth in electric boat industry demand, market active. Hasbro rose 0.12%. Based on recent key news: On December 18, Hasbro released its latest company announcement, emphasizing its sales strategy for the holiday season. This announcement may have boosted investor confidence, leading to a slight increase in stock price. Source: Public Technologies. On December 18, market analysts rated Hasbro as "moderate buy," but it was not included in the top recommended stocks list. This indicates a cautious market outlook on its future performance, potentially limiting further stock price increases. Source: MarketBeat. On December 19, Hasbro's original content release further solidified its information transparency in the market, which may have a positive impact on stock price. Source: Public Technologies. Holiday season sales strategy impacts stock price. Topgolf Callaway Brands rose 3.04%, with trading volume reaching $17.66 million, and increased trading volume, with no significant news recently. Trading is active, with clear capital flows. Considering sector and industry trends, this stock shows significant volatility, and specific reasons need further observation. Stocks with High Market Capitalization in the Industry Mattel fell 1.00%. Based on recent key news: On December 18, Mattel announced the appointment of Natalia Premovic as Chief Consumer Products and Experience Officer. This move aims to strengthen the global consumer products and experience business, which may have a positive impact on the company's future development. Source: Reuters On December 17, the market expressed doubts about Mattel's future business expansion direction, particularly regarding challenges in identity and privacy management that may affect its business growth. Source: Business Wire No other significant news recently. The toy industry faces innovation challenges and needs to pay attention to policy changes