US strikes Iran, Tehran hits Gulf states, says Strait of Hormuz closed
Context
By Steve Holland, Parisa Hafezi, Phil Stewart and Yomna Ehab WASHINGTON/DUBAI, July 12 (Reuters) - U.S. and Iranian forces exchanged heavy missile and drone strikes with Tehran targeting U.S. facilities in states across the Gulf on Sunday after saying it had again closed the vital Strait of Hormuz. A series of attacks between the U.S. and Iran over the past several days led President Donald Trump to declare the end of a ceasefire meant to halt the fighting that the U.S. and Israel began on February 28, though Trump has left the door open to continued negotiations.
What it means
Direct US-Iran military strikes combined with a declared Strait of Hormuz closure represent a genuine, severe escalation — not a continuation — with a historically large supply-risk premium on crude and a strong safe-haven bid into gold. Defense names have historically risen sharply on direct US military engagement of this scale. These moves are historically associated with the initial shock window; outcomes depend heavily on whether the Strait closure is enforced or quickly contested.
Causal chain
- Exp. moveTimeframeConviction
- Brent crude (BZ)$49.66L1d
Strait of Hormuz declared closed by Iran; ~20% of global seaborne oil faces acute disruption risk, largest credible chokepoint threat in decades
✓ correct+9%(abnormal +7.5%)·1 trading day (10 Jul → 13 Jul)·$42.15 → $46.00 - WTI crude (CL)$127.48L1d
WTI moves in lockstep with Brent on a global supply shock of this magnitude
• no significant moveabnormal +6.6%·1 trading day - Defense (LMT, RTX, ITA)$574.11M1d
Direct US-Iran military exchange raises defense-spending expectations and conflict-duration premium
• no significant moveabnormal -0.5%·1 trading day - Gold (GLD)$377.16M1d
Acute geopolitical shock at maximum severity drives safe-haven demand
• no significant moveabnormal -1.8%·1 trading day
How to read a signal
- Severity
- the event's market impact, 1–5
- Direction
- ↑ / ↓ likely price move for the asset
- Exp. move
- the size of the abnormal move we'd expect if the call plays out — not a claim a move will happen:Most flagged events don't move beyond noise; those count against us (see the track record).Ssmall<1%Mmoderate1–5%Llarge>5%
- Timeframe
- the window we measure over:1dshort5dmedium21dlong
- Conviction
- how well-established the directional call is (textbook → speculative) — not a guaranteed outcome:lowaveragestrong
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Sign up free →Not investment advice · for informational purposes only. Generated 12 Jul, 07:50 UTC