Gabriela Santos of JP Morgan Asset Management warned AI-related concentration
risk has spilled from equities into fixed income. She said the AI supercycle
investment case remains intact but investors must be cautious about portfolio
construction. July’s tech sell-off — the PHLX Semiconductor Index plunged 21%
(its largest monthly drop since 2008) and the KOSPI fell 22% — highlighted
crowding risks. Santos urged tighter position-size controls, prudent use of
leverage and diversification beyond AI, saying traditional risk factors,
sectors, regions and even asset classes may no longer capture AI-driven
concentration.