Core Viewpoint - The U.S. stock market opened poorly in December due to a sell-off in cryptocurrencies and hawkish comments from the Bank of Japan, leading to a decline in market sentiment [1] Market Performance - All three major indices opened lower: the Dow Jones Industrial Average fell by 0.59%, the S&P 500 dropped by 0.64%, and the Nasdaq Composite decreased by 0.85% [1] - Technology stocks experienced widespread declines, with Nvidia and Microsoft both falling over 1% [1] Cryptocurrency Impact - Bitcoin briefly fell below $85,000, contributing to a decline in cryptocurrency-related stocks, with Coinbase and Strategy dropping over 4% [1] Company-Specific Developments - New思科技 (New Thinking Technology) saw a significant increase of 5% following Nvidia's investment of $2 billion in the company [1]