Argues the S&P 500 is a concentration trap and that 2026 will favor anti-momentum value stocks over index leaders.
Unpriced research observations (excluded from Calls and Returns):
SPX — AVOID The author claims S&P 500 concentration is at a 50-year high with the equity risk premium effectively zero, while passive inflows force buying of expensive index leaders and AI capex circularity risks a structural repricing. He argues index-heavy investors are effectively long a single theme rather than diversified, and expects flat or negative real returns for index leaders over the subsequent decade. The preferred alternative is anti-momentum value stocks, but no specific ticker is given for that side. Exact non-equity contract requires separate historical validation; no generic proxy.
If you are index-heavy, you aren't diversified; you are just long on a single theme.