Fed official Goolsbee said business contacts indicate the labor market is tightening, and other indicators point to the same trend.

STAR Market broad-based indices have recently diverged, with STAR 100 and STAR 200 outperforming. ETF flows have not simply tracked index moves — some funds recorded net subscriptions into STAR 50 ETFs during that index's pullback. Market participants say ongoing refinements to the STAR index system are highlighting differences in market-cap tiers, sector exposures and concentration, and will further segment index-based allocation tools.

Bank of England deputy governor Breeden said the immediate question is whether the existing regulatory framework is ready for artificial intelligence.