Citadel Securities: AI Trade Leaves ‘No Margin for Error’

The notable signal here is the source: a fixed-income desk at a major market maker, not an equity research team, flagging AI capex risk. That framing matters because it links the AI trade to broader credit and funding conditions, implying the concern is less about any single stock than about what happens if spending keeps outpacing returns. The reference to tech selling off as investors grow more demanding suggests a shift from enthusiasm to scrutiny. Whether that scrutiny spreads beyond tech into credit markets is the open question worth watching.