投机主题都在抛！高盛交易台：周四美股动量交易创DeepSeek冲击以来最大跌幅

Core Viewpoint - The recent sell-off in the market, particularly affecting high-beta momentum trading strategies and AI-related stocks, is attributed to multiple pressure factors, including profit-taking ahead of Nvidia's earnings report, concerns over AI infrastructure investment returns, hawkish comments from the Federal Reserve, corporate layoffs, and year-end portfolio adjustments [1][7][9]. Group 1: Market Performance - The Nasdaq 100 index fell over 2% on Thursday, marking a decline in five out of the last six trading days, with market sentiment shifting towards a defensive stance [2][4]. - High-beta momentum trading (GSPRHIMO) experienced a 7% drop, the largest single-day decline since the DeepSeek event, indicating significant pressure on speculative sectors like AI and cryptocurrency-related stocks [1][4][5]. Group 2: Contributing Factors - Five key factors triggered the recent market downturn: profit-taking before Nvidia's earnings, concerns about inflated power demand in data centers related to AI, hawkish statements from Federal Reserve officials, corporate cost-cutting measures, and the seasonal pressure of year-end portfolio adjustments [9][10][11]. - The market is currently awaiting clearer signals, such as Nvidia's earnings performance and the Federal Reserve's monetary policy direction, to assess when the sell-off might stabilize [7][11]. Group 3: Investment Strategies - High-beta momentum strategies are currently showing a significant correlation with high short interest and high residual volatility, while their correlation with high-quality factors is notably lower than usual [12][14]. - Goldman Sachs' momentum strategy has shifted towards high-beta and cyclical sectors while shorting healthcare, making it particularly vulnerable during this sell-off [14][15]. - The skepticism surrounding AI is increasing, with notable events such as Oracle's credit default swaps widening and SoftBank selling Nvidia shares, impacting the AI thematic basket [15].