Markets: As bond yields cool off, stock buyers step in where angels fear to tread

Brent crude rose to $108 per barrel, while the 10-year Treasury yield eased to 5.08% from a recent 5.3% peak; U.S. futures were higher after Friday’s tech-led selloff, though European markets declined. Bank of America says hyperscalers’ weighted average cost of capital has climbed to 10% from 4% in 2023, raising the return threshold for AI investment. Its Savita Subramanian expects the capex wave to continue but warned of a possible marked shift next year if yields do not fall.

Analysis

The key tension is not whether last week’s tech selloff was “overcooked,” but whether higher financing costs are beginning to screen AI capex on returns rather than strategic urgency. A 10% WACC is a sector-level hurdle, not proof that projects fail: cash-rich hyperscalers may fund investment internally, while the marginal data-center build still depends on power availability, utilization, and monetization. The second-order risk is capex selectivity: a slowdown would flow first to lower-quality or longer-payback suppliers across semiconductors, networking, and data-center infrastructure, not uniformly to all AI exposure. Conversely, proven capacity and power assets could gain bargaining power.

Near term (days), the futures rebound may reflect positioning and dip-buying; it does not resolve the oil/inflation-versus-yields conflict. Over 1–3 months, watch real yields, credit spreads, hyperscaler capex guidance, and evidence that AI revenue or utilization is keeping pace with investment. Over 6–18 months, persistently high funding costs could shift growth from new capacity toward monetization and efficiency, pressuring suppliers whose growth assumptions depend on uninterrupted buildout. Oil sustaining elevated levels would compound inflation and consumer/transport cost pressure, potentially limiting rate relief.

Contrarian angle: the market may be treating all AI spend as equally vulnerable, when the relevant distinction is incremental return and funding source. But a one-day futures bounce is weak evidence that the capex economics are intact. No company-level exposure or valuation data are provided, so avoid a broad, unconditional short.

Key Decisions for Investors

• Do not chase the morning tech rebound. Treat it as a tactical positioning signal unless it is confirmed by easing real yields and stable credit spreads.
• Conditional relative-value idea: favor energy exposure such as XLE over long-duration growth exposure such as QQQ if crude remains elevated and real yields resume rising. Reassess if oil retreats materially or yields fall alongside improving inflation data; this pairing is a macro hedge, not a direct AI-capex expression.
• Keep AI infrastructure exposure selective rather than making a blanket sector call. Before adding, verify hyperscaler capex guidance, utilization, and incremental monetization; a guidance cut or evidence of delayed projects would strengthen the downside case for capacity-dependent suppliers.
• Falsification/watch list: a sustained decline in real yields and credit spreads, alongside unchanged or higher hyperscaler investment plans and improving AI-related revenue, would weaken the thesis that financing costs are forcing a near-term capex retrenchment.