In Ominous Sign, Sellers Are Vanishing as US Stocks Smash Record

The US equity market is exhibiting signs of potential overconfidence as the S&P 500 continues to reach new highs, logging its fifth record in nine trading days. A notable scarcity of sellers is emerging, with trading volume for declining stocks averaging just 42% of total turnover over the past month, the lowest level since 2020. This trend, indicating a lack of conviction behind downturns, is viewed by some as an ominous signal in the current market rally.

Analysis

The US equity market is exhibiting technical signs of extreme investor confidence, which may signal underlying fragility despite recent strength. The S&P 500 Index has achieved five new record highs within a nine-day trading period, but this rally is accompanied by a notable scarcity of sellers. A key metric supporting this view is that trading volume for declining stocks has averaged just 42% of total US exchange turnover over the past month, a level not seen since 2020, according to data from Thrasher Analytics. This low participation on down days indicates a lack of conviction in any bearish moves and a high degree of complacency among market participants. Such one-sided sentiment can be an ominous precursor to increased volatility, as a market with few sellers can be vulnerable to sharp corrections if sentiment abruptly shifts.

Key Decisions for Investors

• Given the signs of market overconfidence and low bearish conviction, investors should review portfolio risk levels and consider trimming highly appreciated, high-beta positions.
• Monitor trading volumes on down days; a significant and sustained increase in turnover during pullbacks would be a key signal that sentiment is shifting and a deeper correction may be materializing.
• While momentum is currently positive, the scarcity of sellers presents a contrarian indicator, suggesting caution is warranted before initiating aggressive new long positions in broad market indices.