Bank of America(US:BAC) 华尔街见闻·2025-07-20 11:44Core Viewpoint - The recent surge in the US stock market, particularly the Nasdaq, has raised concerns as Bank of America's chief investment strategist Michael Hartnett indicates that all proprietary trading rules have triggered sell signals, suggesting a potential market correction [1][3]. Group 1: Market Signals - The stock market has reached critical technical thresholds, with multiple indicators showing that risks are accumulating [2]. - Hartnett's latest "Flow Show" report highlights that the Bank of America fund manager survey's cash rules, global breadth rules, and global fund flow trading rules have all issued sell signals [3][9]. - The proportion of cash held by fund managers has dropped to 3.9%, triggering a sell signal; historically, such signals have led to an average decline of 2% in the S&P 500 index [4][10]. Group 2: Bond Market Concerns - Hartnett believes that the true catalyst for a sell-off may not be in the stock market but rather in the bond market. A breakout of the 30-year US Treasury yield above 5% could shift market sentiment from "risk-on" to "risk-off" [4][14]. - The 30-year Treasury yield briefly surpassed 5% amid fears of potential actions by Trump against Powell, with current yields at 5.1% in the US, 5.6% in the UK, and 3.2% in Japan [15]. Group 3: Market Breadth and Economic Indicators - Despite the stock market reaching new highs, market breadth is at historical lows, indicating potential economic slowdown or a bubble in US equities [5][20]. - The equal-weighted S&P 500 index relative to the S&P 500 is at a 22-year low, and the Russell 2000 index is near a 25-year low, suggesting a concentration of performance among a few tech giants [21][26]. Group 4: Historical Context and Policy Implications - Hartnett draws parallels between current events and the policy conflicts of the 1970s, particularly regarding Trump's relationship with the Federal Reserve and potential repercussions if Powell were to be ousted [6][27]. - The historical context includes Nixon's economic policies in the early 1970s, which led to a cycle of initial prosperity followed by a downturn, suggesting that similar outcomes could occur if current policies shift dramatically [28][31].