深夜美股跳水，热门中概股普跌，小牛电动跌超4%，叮咚买菜飙涨10%，美国公布重大数据

Market Overview - The three major U.S. stock indices opened lower on December 16, with the Dow Jones down 0.39%, the S&P 500 down 0.18%, and the Nasdaq Composite down 0.36% [1] - Major tech stocks mostly declined, with Facebook up 0.34% and Nvidia up 0.18%, while Apple fell 0.39% and Tesla dropped 0.21% [1] Cryptocurrency and Stablecoins - Circle (CRCL), a stablecoin issuer, saw its stock rise over 8% following Visa's announcement of USDC settlement services in the U.S., marking significant progress in the integration of stablecoins into mainstream financial services [1] - In the cryptocurrency market, Bitcoin fell over 1% to $87,175.9, briefly dipping below $86,000, while Ethereum dropped over 3% [2] - A significant liquidation event occurred in the cryptocurrency market, with over $500 million in contracts liquidated and 160,000 traders affected [2] Commodities - Gold prices increased by 0.64%, surpassing $4,330, while palladium rose 1.7%, reaching over $1,600 per ounce [1] - International oil prices experienced a sharp decline, with WTI crude oil down 2.55% to $55.37 per barrel and ICE Brent crude falling over 2% to $59.11 per barrel, marking the first time it fell below $60 since May [2] Employment Data - The U.S. non-farm payroll data for November showed an increase of 64,000 jobs, exceeding market expectations, while the unemployment rate rose to 4.6%, the highest since September 2021 [3] - The U.S. Labor Department revised down the non-farm employment figures for August and September, with a total reduction of 33,000 jobs [3] Stock Market Developments - Nasdaq has formally submitted a proposal to the SEC to extend stock trading hours to nearly 23 hours on weekdays, aiming to enhance trading accessibility [3]