Over the weekend, escalation in hostilities between the U.S., Israel and Iran sent a clear risk-off signal through financial markets. On Monday at the open, all three major U.S. indices were lower — the S&P 500 off roughly 1% and the tech-heavy Nasdaq down about 1.5% — as traders repriced risk assets in the face of heightened geopolitical uncertainty. Commodities quickly reflected the potential for disrupted Middle East supply, with WTI crude oil rising above $70 a barrel and safe-havens like gold and the USD rallying sharply as traders sought protection.
The oil market reaction was grounded in the strategic importance of the Strait of Hormuz. Roughly one-fifth of global crude oil consumption transits this chokepoint each day, with major producers including Saudi Arabia (≈7.2 mmb/d), the UAE (≈4.4 mmb/d), Iraq (≈3.6 mmb/d) and Kuwait (≈2.3 mmb/d) relying on uninterrupted flows.
According to Bloomberg, a significant share of that crude ultimately fuels East Asian demand — notably China (≈38%), India (≈15%), South Korea (≈12%) and Japan (≈11%) — underscoring how disruptions can reverberate through global energy balances.
Market participants are also sensitive to the duration and magnitude of potential disruptions. Research from Goldman Sachs over the weekend on the impact of a full one-month closure of the Strait of Hormuz suggests fair-value oil prices could rise $10–$15/bbl or more absent offsets from strategic reserves or alternative supply routes. Even a partial closure (25–50%) could lift values by several dollars per barrel, depending on available pipeline capacity and storage releases — a reminder of the leverage that supply chokepoints carry in an already tight market.
Importantly, the vulnerability of the Strait of Hormuz extends well beyond crude oil. Refined products flowing through the chokepoint are heavily concentrated in LPG and naphtha, key feedstocks for petrochemicals and plastics production. Asia is the dominant destination across these product categories, meaning any disruption would ripple directly into industrial supply chains, manufacturing inputs, and consumer goods pricing — not just transportation fuels.
Moreover, the Middle East Gulf plays a critical role in global petrochemical and fertilizer trade. Roughly one-third of global exports of fertilizers, methanol, and crude oil products originate from the region, alongside meaningful shares of LNG and natural gas liquids. This underscores that a disruption would not only pressure crude benchmarks like WTI and Brent, but could also tighten markets for agricultural inputs, industrial chemicals, and energy-intensive materials — broadening the inflationary channel beyond gasoline into food production and core goods.
Source: KPLER
On the broader geopolitics front, market-based probability indicators show increasing expectations of a negotiated ceasefire later this month or into April, with a rapid shift from sub-1% odds earlier in March toward a majority probability of de-escalation by late April.
Similarly, longer-dated contracts still imply only modest chances of a full-scale invasion of Iran before 2027.
Taken together, the price action reflects a sharp but contained repricing of risk, concentrated in energy and safe-haven assets rather than a wholesale sell-off across global markets. This suggests investors see heightened short-term volatility rather than an extended disruption to supply or to economic growth.
As of now, the market is not pricing in a prolonged conflict between the U.S., Israel and Iran and should have limited effects in terms of macroeconomic instability. Transmission of higher energy prices into sustained inflation appears muted — 1-year breakeven inflation currently sits at ~2.89%, well below the multi-year peak above 4% seen on Feb. 4 — indicating that markets continue to expect inflation pressures to moderate absent a deeper or lengthier supply shock.
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