Wall Street on edge as more ‘Magnificent 7' tech stocks report earnings this week
1. S&P 500 declines 1% as tariff concerns weigh on Big Tech earnings. 2. Apple plans production shift to India to mitigate China risks. 3. Upcoming economic data releases may signal effects of tariffs. 4. Mixed earnings from 'Magnificent Seven' raise concerns about spending. 5. Nvidia faces competition from China's Huawei in AI chip development.