Goldman Sachs: As Hormuz Risk Fades, AI Valuation Debate Takes Over as Key Driver of Market Volatility
N.R. Finch
Goldman strategists argue that the US-Iran deal has compressed oil-price tail risk, and the dominant source of equity volatility in H2 will shift from macro shocks to whether AI capex can deliver earnings — a micro-level reckoning.
Why has oil-price risk suddenly become less frightening?
The US-Iran deal formalised what markets had already priced in; Persian Gulf oil exports have recovered to 66% of normal levels.
Goldman's Q4 2026 Brent forecast sits at $80/barrel, but the team flags a near-term downside scenario — output rebounds faster than restocking demand.
This means → the probability of a "deep adverse" scenario — high inflation plus low growth — has dropped sharply; oil is no longer the market's biggest fear.
The Fed's rate-hike risk takes over — how serious is it?
Goldman notes that after the Fed's hawkish June stance, rate-hike risk has replaced the oil shock as the primary macro concern.
Yet the risk is already well-priced in rates markets; as energy-driven inflation pressures fade, it should converge further.
In plain terms = rate hikes are a real risk, but the market has already "bought insurance" — the expectation is in the price, so a fresh panic is unlikely.
Why is the AI valuation debate the real protagonist of H2?
With conventional macro risks narrowing, markets return to a structural tension: fundamentals are supportive, yet valuations already fully reflect optimism.
That tension is sharpest in AI — AI-linked assets are now the single largest source of equity-market volatility.
This means → macro volatility falls while disagreement over AI return-on-investment pushes micro volatility higher — the two move in opposite directions.
Can growth resilience keep supporting the market?
Even during the high-oil-price period, the US and other major oil importers showed considerable resilience; falling oil prices will further support real incomes.
But Goldman cautions: the market's pricing of cyclical optimism is already full — upside driven purely by macro improvement is limited.
In plain terms = the economic foundation is solid, but stock prices have already spent that good news in advance — further gains need a new story.
What should investors watch in H2?
Goldman's framework concludes: the core variable shifts from "the macro contest over oil and rates" to micro-level verification of whether each company's AI capex can deliver earnings.
Earnings season will be the critical test window for this thesis.
This reflects a market that no longer fears "black-swan" supply shocks and has pivoted to a more mundane anxiety — can the money poured into AI actually earn a return?
Content is for reference only, not financial advice.