US growth becomes increasingly dependent on AI investment boom
SPY•US third-quarter GDP grew at a 3.4% annualized rate, slightly below the 3.5% forecast, as information processing equipment accounted for slightly more than half of real private fixed investment growth.
1. Investment drives growth
US growth is increasingly concentrated in AI and data center investment, raising risks that market expectations exceed eventual returns. Gross private domestic investment added 3.27 percentage points to GDP growth, while net exports subtracted 3.32 percentage points. Imported capital goods limited investment’s immediate domestic growth contribution but supported productive capacity that could boost future output.
