U.S. business activity holds steady in May amid Iran-linked input cost surge

S&P Global’s flash U.S. composite PMI held at 51.7 in May, with manufacturing accelerating to a 49-month high of 56.2 while services slipped to 50.9. The report also flagged the steepest rise in input costs since late-2022, driven by supply constraints and an energy price shock tied to the Iran war and closure of the Strait of Hormuz. The data suggest steady but mixed U.S. growth, with geopolitical disruption increasingly feeding through to costs and export demand.

Analysis

The bigger signal here is not the modest strength in headline activity, but the widening spread between manufacturing resilience and services fragility under an energy-input shock. That mix typically supports the “old economy” complex near term while compressing margins in services-heavy, wage-sensitive businesses over the next 1-2 quarters. If the shock persists, the market will likely reprice inflation expectations before it fully reprices growth, which is usually bearish for duration-sensitive equities and bullish for cash-generative industrial/energy names.

For NVDA, the direct read-through is muted, but the second-order risk is that higher input costs and weaker export order growth can slow capex decisions outside the hyperscaler cohort. That matters because AI infrastructure demand is increasingly dependent on broadening enterprise and sovereign budgets; a 1-2 quarter delay in discretionary IT spend can stretch valuation multiples even if unit demand remains strong. In other words, the fundamental story stays intact, but the stock is vulnerable to multiple compression if rates-back-up trade gains traction.

For SPGI, the near-term setup is mixed: pricing power and indexing exposure help in an inflationary tape, but issuance, M&A, and rate-sensitive capital markets activity are the channels most likely to soften if energy-driven inflation persists. The market may be underestimating how quickly a sustained cost shock can hit transaction volumes with a lag, making the next earnings season more important than the current macro print. The contrarian view is that this is less a growth scare than a margin scare, which favors relative-value shorts over outright index hedges.

Key Decisions for Investors

• Maintain a tactical underweight in NVDA versus SOXX for the next 4-8 weeks; the setup is less about demand collapse and more about multiple risk if inflation keeps yields elevated. Stop if real yields reverse materially lower.
• Add SPGI only on weakness, not strength: prefer a 3-6 month entry after any rate-led pullback, because inflation-linked pricing can offset some volume risk. Risk/reward is better on a selloff than chasing current levels.
• Pair trade: long XLE / short XLV or XLY for 1-3 months if energy costs remain elevated. The trade benefits from margin pressure in consumer and services while preserving upside to inflation pass-through.
• Use a short-duration hedge on broad tech beta via QQQ puts or call spreads into the next CPI/PPI window. The catalyst is not earnings misses but a higher-for-longer rates regime if input-cost inflation broadens.
• If you want a cleaner expression of the macro, short high-multiple software versus semis rather than shorting NVDA outright; semis retain a better fundamental floor while software is more exposed to delayed enterprise spend.