Markets Sell Off as US-Iran Ceasefire 'Going Nowhere'; Brent Bounces to ~$104 — Trump Military Option Risk Priced In

Global equity and oil markets whipsawed on May 10 as Fortune and major outlets reported that US-Iran ceasefire negotiations had effectively stalled, with one headline reading 'ceasefire plans are going nowhere.' The news triggered a risk-off session that reversed some of the prior week's gains, with investors pricing in a growing probability that President Trump could resort to direct military escalation to forcibly reopen the Strait of Hormuz. **Oil market reaction (May 10):** - **Brent crude:** ~$104.01/bbl (+2.7% from Friday's $101.29 close) — ceasefire collapse fears pushing oil back toward the recent $114-115 peak range - **WTI crude:** ~$97.97/bbl (+2.7% from Friday's $95.42 close) - The move partially reverses the 6%+ weekly decline driven by ceasefire optimism; Brent is now ~55% above the pre-Iran-war level of $67 WTI - EIA estimates 10.1 mbpd of global supply remains disrupted; IEA reports partial Hormuz reopening is ongoing but not progressing meaningfully **Ceasefire status (May 10):** - Iran's 14-point MOU counter-proposal submitted May 2 via Pakistan remains under review by Iranian Supreme Leader Khamenei's office - Secretary of State Rubio described the US as 'still waiting for a serious, substantive response' from Tehran - Iranian FM Araghchi reiterated Iran 'will never bow to pressure' on nuclear enrichment — the central sticking point in the MOU framework - The May 8 US firing on Iranian tankers attempting Hormuz evasion (confirmed by the Pentagon) has complicated the diplomatic atmosphere - Trump's insistence that the ceasefire remained 'in effect' despite the tanker incident is creating credibility questions in Tehran about US commitment to the pause **Market sell-off drivers:** - Fortune's May 10 headline that 'ceasefire plans are going nowhere' signaled Wall Street that the optimistic oil-crash scenario from May 6 (Brent crashing 8-9% from $114 to $103 on ceasefire progress) may not be sustained - Analysts note Trump has been publicly discussing a military option to force-reopen the Strait — a scenario that could trigger full-scale resumption of hostilities, blowing past the current ceasefire fragility to outright war escalation - ISM Services Prices Paid at 70.7 (highest since 2022, released May 5) — still embedding stagflation concerns - The week of May 11-15 carries simultaneous macro event risk: Warsh Senate vote, Trump-Xi summit, Powell expiry, April CPI (Tuesday May 12) **Stagflation implications:** For every $10/bbl sustained increase in Brent crude, Goldman Sachs estimates US CPI is affected by +0.3–0.4pp with a 6-month lag. At Brent ~$104 (May 10), the headline PCE/CPI path is clearly upward through Q3 2026 — reinforcing the stagflation trap that prevents any Fed rate cut in the Warsh era. The Fed's dual mandate (maximum employment + 2% inflation) is in direct tension: labor market is adequate (+115K April jobs), but energy-driven inflation is well above target (PCE 3.5%/3.2% core).