Group 1 - Nvidia (NVDA.US) has the highest operating efficiency among the "Big Seven" in the US stock market, with an operating profit margin of 59.86% over the past four quarters [2] - Tesla (TSLA) ranks last with a profit margin of 8.76%, attributed to protests related to CEO Elon Musk's brief political involvement and strong competition from Chinese EV manufacturer BYD [2][5] - Meta (META.US) ranks second with a 44.42% rolling 12-month operating profit margin, while Microsoft (MSFT) ranks third among tech giants [2] Group 2 - BestBrokers analyzed financial data from 1,189 companies with a market capitalization over $10 billion across 39 major industries [5] - The research highlights that Nvidia's high profit margin reflects its leadership in the AI and gaming GPU markets, emphasizing the importance of sustainable growth through cost control and strategic positioning in high-margin markets [5] - The average operating profit margins for various industries include port operations (38.5%), financial investments (32.4%), tobacco (31.2%), and railway operations (30.1%) [7] Group 3 - In the automotive sector, luxury brand Ferrari leads with an operating profit margin of 28.7%, nearly double that of Toyota's 15.4%, both significantly above the industry average of 4.8% [7] - Ferrari's limited production strategy of 13,752 vehicles in 2024 contrasts sharply with Toyota's approach of achieving strong profit margins through production efficiency and supply chain management [7] - Electric startup Rivian (RIVN.US) faces severe challenges, with an operating profit margin of -70.3% due to ongoing investments in R&D and manufacturing difficulties [7]

Market Overview - Major US indices showed positive performance with the Dow Jones Industrial Average rising by 432.43 points, or 1.00%, to close at 43819.27 [2] - European markets also experienced gains, with the Euro Stoxx 50 increasing by 81.61 points, or 1.56%, and the German DAX up by 383.92 points, or 1.62% [2] - In Asia, the Nikkei 225 rose by 566.21 points, or 1.43%, while the Shanghai Composite Index fell by 24.23 points, or 0.70% [2] Trade and Tariff Developments - President Trump stated that there is no need to extend the July 9 trade deadline, emphasizing that countries must reach agreements with the US before this date to avoid higher tariffs [3][4] - The US Treasury Secretary indicated that negotiations with 10 to 12 of the 18 key trading partners could be completed before Labor Day [4] Japan's Demographic Challenges - Japan's new birth rate is projected to fall below 700,000 in 2024, with a birth rate of 1.2 or lower, marking a historical low [5] - The National Institute of Population and Social Security Research forecasts that Japan's population could decline from 120 million to 87 million by 2070 [6] US Legislative Developments - The Congressional Budget Office reported that the Senate version of the "Big and Beautiful" bill will increase US debt by $3.3 trillion over the next decade [7] - The bill has faced challenges in passing through Congress, requiring modifications to secure votes [7] Financial Technology Initiatives in Hong Kong - The Hong Kong government aims to promote the use of stablecoins in various applications to address issues in cross-border payments [8] - The new regulations for stablecoins will take effect on August 1, with a focus on creating a favorable market environment [8] Nvidia Stock Sales - Nvidia insiders have sold over $1 billion in stock over the past year, with approximately $500 million in sales occurring in the last month [11] - Despite concerns over restrictions on AI chip sales, Nvidia's stock has risen by over 17% this year and 44% in the past three months [12] - Recent filings indicate that Nvidia sold about $15 million in stock as part of a larger plan to sell up to 6 million shares by year-end [12]