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Brazil will auction a foreign exchange credit line of up to $4 billion on December 12th.NASDAQ China Golden Dragon Index closed down 0.74%, NASDAQ China Golden Dragon Index closed down 0.74%, most popular Chinese stocks fell, Tencent Music fell more than 5%, JD.COM fell more than 3%, Xpeng Motors fell more than 2%, and Bali, Weilai and Pinduoduo fell more than 1%. In terms of gains, Tiger Securities rose more than 3%, while Youdao and Gaotu rose more than 1%.Most ETFs in the US stock market closed up, with semiconductor ETFs rising by over 2.4%, Broadcom by over 6.6% and NVIDIA by over 3.1%. On Wednesday (December 11th), semiconductor ETFs closed up by 2.45%, Internet stock index ETF rose by over 2%, global aviation ETF, optional consumer ETF, technology industry ETF and global technology stock index ETF rose by 1.81%-1.17%. Semiconductor concept stocks rose almost across the board, Broadcom rose by 6.63%, NVIDIA Double Long ETF rose by more than 6.1%, Laidisi Semiconductor rose by more than 5.9%, NVIDIA rose by 3.14%, while Intel, Cisco, stmicroelectronics ADR and Chipscreen fell by 0.2%-0.65%.

The first-line private placement has become the strategic focus of "going to the position" and "adding flexibility". Recently, the A-share market has continued to fluctuate and strengthen, and market trading tends to be active. The private equity industry's judgment on the market outlook is generally positive. A number of first-line private placements said in an interview with reporters this week that the A-share market is expected to start up at the end of the year, and it is an important strategy to focus on "technological growth" and "domestic demand" in terms of structural mainline, maintain a high position and increase portfolio flexibility. (CSI Taurus)Scientists observed semi-Dirac fermion for the first time, and scientists from Pennsylvania State University and Columbia University joined hands to observe a special kind of quasi-particle-semi-Dirac fermion for the first time. Such quasi-particles have mass when moving in one direction, but lose mass when moving in the other direction. The researchers said that in-depth research on these quasi-particles is expected to promote the development of next-generation batteries, sensors and other technologies. Related papers were published in the new issue of Physical Review X.The performance of deep thinking AI model exceeds the existing weather forecast. A study published in the new issue of Nature reported the latest machine learning model introduced by deep thinking. The model can make reliable probabilistic weather forecast according to current and future weather, and its performance not only exceeds the best traditional medium-range weather forecast, but also can better predict extreme weather, tropical cyclone route and wind energy production.

The probability that the Fed will cut interest rates by 25 basis points in December is 98.6%. According to CME's "Fed Watch", the probability that the Fed will keep the current interest rate unchanged by December is 1.4%, and the cumulative probability of cutting interest rates by 25 basis points is 98.6%. The probability of keeping the current interest rate unchanged by January next year is 1.1%, the probability of cutting interest rates by 25 basis points is 79.9%, and the probability of cutting interest rates by 50 basis points is 19%.Market News: The U.S. Court of Appeal rejected the diversified disclosure rules of Nasdaq's board of directors.Merger and acquisition, restructuring and opening up a new bureau, market value management has achieved results. Shanghai is a state-owned state-owned enterprise in the big game of capital market, and Shanghai is a major town of state-owned state-owned enterprises. The market value of state-owned listed companies in Shanghai has exceeded 2.7 trillion yuan, which is a powerful state-owned company in the capital market. Since the beginning of this year, Shanghai state-owned listed companies have taken the initiative to take the lead, tried first, actively reformed and innovated, decisively settled in the big chess game of the capital market, opened a new game in mergers and acquisitions, and managed the market value quite effectively, handing over a sample answer sheet. (SSE)