Updated
Updated · PLANADVISER · Aug 3
Retirement Advisers Rethink Diversification as 90% of Assets Move With S&P 500
Updated
Updated · PLANADVISER · Aug 3

Retirement Advisers Rethink Diversification as 90% of Assets Move With S&P 500

1 articles · Updated · PLANADVISER · Aug 3

Summary

  • More than 90% of the world’s investable assets now move in step with the S&P 500, advisers say, pushing retirement-plan fiduciaries to revisit the old stock-bond, U.S.-international diversification playbook.
  • Talaria data for 2021-2026 showed correlations still high for assets often treated as diversifiers, including REITs at 0.82, equity hedge at 0.81, global aggregate bonds at 0.61 and global Treasuries at 0.58.
  • International exposure is being redefined as owning companies shaped by different local economies, leading some advisers to emphasize small-cap and emerging-market options rather than relying on U.S. multinationals’ overseas sales.
  • Index funds are also under scrutiny because concentration has surged: BlackRock found the top 20 companies made up 49% of the S&P 500 in April, complicating performance comparisons and masking single-stock risk.
  • Advisers say the goal is less to chase returns than to build lineups participants can hold through volatility, especially near retirement, with asset allocation driving 80% to 90% of outcomes and education helping investors stay invested.

Insights

If most global assets move together, is your diversified 401(k) secretly just a massive bet on a few tech giants?
Could the popular target-date funds designed to protect your retirement actually be hiding dangerous single-stock vulnerabilities?