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US stocks closed: Nasdaq stood at 20,000 points for the first time in history, and star technology stocks such as Google and Tesla hit record highs. US stocks closed mixed, with the Dow down 0.22%, the S&P 500 index up 0.82% and the Nasdaq up 1.77%, breaking through 20,000 points for the first time and hitting a new record high. Star technology stocks are climbing, with Tesla, Google, Amazon, Meta and Netflix all hitting record highs. Among them, Tesla and Google rose by nearly 6%, while Amazon, Meta and Nai soared by more than 2%. Bitcoin regained its position of $100,000, and cryptocurrency concept stocks soared collectively. MicroStrategy rose by more than 9%, Riot Platforms rose by more than 6%, and Bit Digital and Coinbase rose by nearly 4%. Gold and silver mining stocks generally rose, Cordillen Mining rose more than 5%, Pan American Silver rose more than 3%, and harmony Gold and Hekela Mining rose nearly 3%.Sochi airport in Russia suspended flights for security reasons. On the evening of December 11, local time, Sochi International Airport in southern Russia temporarily stopped flights for security reasons. (CCTV)It's a mystery to say "no" to the influx of large amounts of funds, and the public offering products are setting off a wave of "restricted purchases". Whether it is an active equity fund, a debt-based fund or QDII fund, many outstanding products have recently announced the suspension of large-scale subscription, and even some funds have chosen to directly adjust the subscription threshold to 0 yuan and suspend all subscription operations. Some insiders said that there is another mystery for fund companies to suspend large-scale subscriptions. As the end of the year approaches, the market gradually enters the stage of differentiation. At this time, the purchase restriction is likely to come from the consideration that the fund manager hopes that the capital side will be more stable. (CSI)

National Bank of Canada: cut the benchmark interest rate by 50 basis points to 5.45%.Turkish President Erdogan: We have reached a joint memorandum with Ethiopia and Somalia.Ahmed Salah, leader of Syrian reactionaries: I will try to disband the regime security forces and close the notorious prisons.

Central Bank of Mexico: Pay close attention to the development of Mexico's financial market and will take necessary measures when necessary to maintain the stability of the financial system and the normal operation of the payment system.The concept of high-speed copper connection is very popular. Recently, benefiting from the explosive demand growth of AI computing power, the market funds focus on the supporting concept of high-speed copper connection in the upper reaches of NVIDIA. On December 11th, a number of high-speed copper connection concept stocks rose sharply, with Zhaolong Interconnect rising by 12.58%, Woer Nuclear Materials by 8.70%, Shenyu Shares by 4.77% and Derun Electronics by 4.99%. High-speed copper connection, also known as high-speed connector, is a core data transmission component, which constitutes an efficient signal transmission system. Manager Public Offering of Fund said that the concept stocks of high-speed copper connection continued to rise, which actually benefited from the explosion of demand for AI computing power. Invista once introduced at GTC2024 that NVL72 uses copper cable interconnection to save costs significantly compared with optical modules. Shanxi Securities predicts that the new market of high-speed copper cable brought by GB200 will be close to 6 billion US dollars in 2025, and the usage scenarios of high-speed copper cable will continue to expand. It is found that a number of public and private equity funds have heavily invested in the concept stocks of high-speed copper connections that have risen recently in the third quarter. There are also fund managers who heavily invested in related stocks in the second quarter, but significantly reduced their positions in the third quarter, missing the rise of concept stocks in the fourth quarter. There are also some fund managers who continue to be optimistic about the stimulation of the demand of upstream industries caused by the outbreak of AI computing power, and have successively added high-speed copper connection concept stocks. (Securities Times)Ge Vernova Inc.(GEV) has signed several contracts to sell natural gas turbines to 5 GW data center.