Spencer Stuart U.S. Board Index Reveals a Decade-Low in Board Refreshment as Director Demands Intensify

The 2026 U.S. Spencer Stuart Board Index finds S&P 500 board refreshment has fallen to its lowest level in a decade, with boards appointing just 364 new independent directors and leaning harder on seasoned leadership as they confront AI, transformation and geopolitical uncertainty. Nearly two-thirds of new directors bring CEO or financial experience while only 24% are first-time public company directors, raising questions about fresh perspective and diversity of thought. For SEA scale-up boards, it signals the trade-off between experience and renewal when composing a board fit for disruption.