他们补充说，"虽然股市调整在历史上并不罕见，但美元同时遭抛售却很罕见，尤其是在股市迅速重新 定价时。" 特朗普不断升级的贸易战动摇了全球金融市场，并引发了对世界最大经济体发展轨迹的担忧，在此背景 下，美国股市和美元近期均出现动荡。美联储上周下调了经济增长预测，并上调了通胀预期，而关税是 主要因素。 今年之前，由于市场预期美国经济将继续以快于竞争对手的速度增长，美国股市一直主导着全球市场。 FactSet数据显示，2023年至2024年，MSCI美国股票指数飙升54%，而MSCI除美国外全球发达市场股票 指数以美元计价仅上涨17%。 去年11月特朗普赢得选举后，美股进一步飙升，而美元则因押注亲商政策将提振经济增长，而关税最终 将被证明比特朗普当选总统时威胁的更为温和而上涨。但自特朗普1月就职以来，这些押注迅速瓦解， 特朗普对包括墨西哥、加拿大在内的主要贸易伙伴的进口商品征收高额关税，并威胁要进一步征收关 税，这促使华尔街银行质疑美国资产的优异表现还能持续多久。 华尔街纷纷质疑，现在押注美国恐非"明智之举"！ 近几周，由于特朗普关税带来的影响，以及对经济前景和地缘政治的不确定性，美元和股市出现异常持 久且深度的双 ...

Group 1: Nvidia - Nvidia reported a 78% increase in revenue to $39.3 billion in the fourth quarter, driven by strong data center sales, with non-GAAP net income rising 71% to $0.89 per diluted share [3] - Despite strong financial results, Nvidia's stock has declined approximately 10% since the report, partly due to a 3-percentage point contraction in gross margin, indicating a potential loss of pricing power [4] - Nvidia's GPUs are recognized as leading AI accelerators, supported by its CUDA platform, which includes extensive software development tools and pretrained AI models, making competition challenging [5] - Wall Street anticipates a 50% increase in Nvidia's adjusted earnings for fiscal 2026, suggesting the current valuation of 40 times adjusted earnings is relatively low [6] Group 2: iShares Bitcoin Trust - The iShares Bitcoin Trust has seen Bitcoin prices rise 35% over the past year to $84,000, with experts predicting significant future price appreciation due to factors like the adoption of spot Bitcoin ETFs and periodic halving of mining subsidies [7][11] - The iShares Bitcoin ETF achieved the highest net inflows during its first year on the market, indicating strong investor interest [10] - Notable hedge fund managers have shifted their portfolios by selling Nvidia shares and increasing their positions in the iShares Bitcoin Trust, with significant purchases made by Israel Englander, Ken Griffin, and David Shaw [8] - Predictions for Bitcoin's future price vary widely, with estimates ranging from $1 million by 2033 to $13 million by 2045, indicating potential upside of 1,090% to 15,375% from current levels [9]