Nearly Half of S&P 500 Stocks Have Negative Beta, Showing Divergence
About 45% of stocks in the S&P 500 have a negative three-month beta, meaning they move opposite to the index. This unusual divergence is highlighted by Goldman Sachs and aligns with findings from CNBC showing similar trends. The phenomenon reflects growing dispersion within the market as mega-cap tech companies drive much of the benchmark's performance while many other stocks lag or decline. This trend has historical parallels; a similar situation occurred in December 1999, just before the dot-com bubble peak. Analysts note that despite record highs for major indexes like the S&P 500, individual stock movements are increasingly divergent due to low correlations and concentrated market leadership from AI-related sectors. Energy stocks also contribute significantly to this trend as rising oil prices push energy sector performance higher while other parts of the market struggle. Analysts suggest that if broader market participation increases or dispersion normalizes over time, these negative beta readings may decline.
Topics: beta analysis market concentration S&P 500 stock divergence