Group 1 - President Trump has announced that he has selected his next Federal Reserve chairman, with an announcement expected soon [1] - The stock market experienced a strong rally during a holiday-shortened week, with major indexes surpassing their 50-day moving averages and many leading stocks indicating buy signals [1] - The stock market closed out November positively, with the Nasdaq, S&P 500, and Dow showing strong performance [2] Group 2 - China's DeepSeek has released a new open-source AI model, coinciding with Google's rollout of Gemini 3 [4] - Nvidia's stock has declined amid news related to China's DeepSeek AI developments, raising questions about whether Nvidia is a buy or sell at this time [4] - Amazon's stock rallied significantly during Black Friday, benefiting from heavy discounts during Thanksgiving [4]