Market reaction
Oil markets rallied aggressively on Monday as renewed military activity in the Middle East increased concerns about supply disruption. Brent crude rose 9% to $79.42 a barrel, and U.S. crude climbed 8.6% to $72.61 per barrel. Investors sought shelter in traditional safe havens, lifting gold by 1.4% to $5,350 an ounce and triggering a bid for government bonds.
Escalation and the Strait of Hormuz
The uptick in risk aversion followed military strikes by the United States and Israel against targets in Iran and a reciprocal barrage of missiles launched by Iran across the region. Comments from President Donald Trump, suggesting to the Daily Mail the conflict could continue for four more weeks and that attacks would persist until U.S. objectives were met, fed expectations that the crisis may be sustained rather than transitory.
Attention focused on the Strait of Hormuz, a chokepoint through which about a fifth of seaborne oil trade flows and 20% of liquefied natural gas shipments travel. While the waterway has not been formally sealed, marine tracking platforms showed tankers congregating on both sides of the strait, either wary of potential attack or facing difficulties securing insurance for transits.
Jorge Leon, head of geopolitical analysis at Rystad Energy, summarized the immediate market impact: "The most immediate and tangible development affecting oil markets is the effective halt of traffic through the Strait of Hormuz, preventing 15 million barrels per day (bpd) of crude oil from reaching markets," he said. "Unless de-escalation signals emerge swiftly, we expect a significant upward repricing of oil."
Supply, OPEC+ and economic implications
OPEC+ agreed to a modest output increase of 206,000 barrels per day for April on Sunday, but much of that incremental supply must still be exported from the Middle East by tanker, potentially constrained by the current shipping frictions. Analysts warned that a prolonged period of higher oil prices would risk re-igniting inflation globally and act as an ad hoc tax on businesses and households, potentially reducing demand.
Alan Gelder, SVP of refining, chemicals and oil markets at Wood Mackenzie, put the situation in stark terms: "The nearest historical analogue in our view is the Middle East oil embargo of the 1970s, which increased oil prices by 300% to around $12/bbl in 1974," he said. "That is only US$90/bbl in 2026 terms. Eclipsing this in today’s market concerned about significant losses of supply seems very achievable."
Regional and equity impacts
Countries dependent on imports of crude were especially sensitive to the price move. Japan, which imports all of its oil, saw Nikkei futures fall 1.1% as the prospective cost burden on the economy increased. On U.S. markets, S&P 500 futures were down 0.8% and Nasdaq futures lost 0.9%, reflecting broader risk-off flows that also weighed on technology and AI-sensitive names.
Currency and bond markets
The oil-led shock reverberated through currency markets. The dollar dipped 0.2% against the Swiss franc to 0.7673, though the U.S. currency retained support as Treasuries remained a primary safe-haven asset. The euro slid 0.3% to $1.1780. Japan’s yen, often behaving as a refuge, appreciated less clearly in this episode because of the country’s full reliance on imported oil; the dollar strengthened 0.2% to 156.31 yen and gained markedly versus the Australian dollar, which is commonly sold when global risk is cut.
In the fixed income space, 10-year U.S. Treasury futures firmed by three ticks, after yields had fallen below 4% for the first time since late November in the prior week. Bonds had attracted demand late last week following the administration placement of UK mortgage lender MFS, a development that intensified credit concerns. MFS had borrowed 2 billion pounds, and its collapse prompted a wider reassessment of banking-sector credit risk alongside existing anxieties around AI-driven equity valuations.
Data calendar and rate outlook
Markets are also bracing for a heavy slate of U.S. data this week, including the ISM manufacturing survey, retail sales and the monthly payrolls report. Weak readings could undermine confidence in the economy after a lacklustre fourth quarter, while simultaneously narrowing the probability of Federal Reserve rate cuts. Current market pricing implies about a 53% chance of easing in June and roughly 60 basis points of rate reductions priced in for the year.
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This report compiles market moves and commentary tied directly to recent military developments in the Middle East, energy price reactions, safe-haven flows and the near-term economic data and policy calendar.