Market Breadth Worsens As Tech Giants Break Free From S&P 500 Reality: Is This Bullish Or Bearish For 2025?
The performance gap between the cap-weighted S&P 500 — tracked by the SPDR S&P 500 ETF Trust (NYSE:SPY) — and its equal-weighted sibling, the Invesco S&P 500 Equal Weight ETF (NYSE:RSP), has blown out to over 4 percentage points in December. This marks the widest monthly gap since May 2023, reflecting how a narrow group of stocks is shouldering the market's returns in the last month of the year. As of Dec. 17, only 90 out of 500 stocks in the S&P 500 are in positive territory month-to-date, a sh