NEW YORK, July 9 — The Dow Jones Industrial Average suffered its worst single-day drop in four weeks on June 20, 2024, falling roughly 600 points to close at 38,500. The selloff erased gains from the prior week, when the index had risen on positive inflation data. The broader market followed suit: the S&P 500 dropped 1.5%, and the Nasdaq Composite fell 1.8%.
The trigger? Renewed tensions between the United States and Iran.
Reports had surfaced that Iran increased its uranium enrichment to near weapons-grade levels, prompting US warnings of further sanctions. The US Treasury Department had already imposed sanctions on Iranian entities on June 18, 2024. The International Atomic Energy Agency (IAEA) reported in May 2024 that Iran had enriched uranium to 84% purity — close to the 90% threshold for weapons-grade material.
Think of it like this: when geopolitical risk spikes, investors often flee stocks and pile into perceived safe havens. That played out in plain sight.
Major defense contractors Lockheed Martin and Northrop Grumman rose 2-3% on safe-haven buying. Oil prices surged 4% to $85 per barrel, as investors feared disruption to shipping through the Strait of Hormuz. The CBOE Volatility Index (VIX) — often called Wall Street’s fear gauge — spiked to 22, its highest in a month.
The practical upshot for ordinary investors? A single day’s drop wiped out the prior week’s gains, which had come on the back of positive inflation data. The Federal Reserve had held interest rates steady at 5.25-5.50% on June 12, 2024, citing persistent inflation.
The selloff underscored how quickly a geopolitical shock can overshadow domestic economic news.
Roots of the conflict
The US-Iran conflict has deep historical roots. The 1979 Iranian Revolution reshaped the relationship. The 2015 Joint Comprehensive Plan of Action (JCPOA) — the nuclear deal — was a diplomatic high point, but the US withdrew from it in 2018 under President Donald Trump.
Since then, Iran’s nuclear program has advanced significantly. The IAEA reported in May 2024 that Iran had enriched uranium to 84% purity, just shy of the 90% threshold for weapons-grade.
Diplomatic efforts have stalled. The US led talks in Vienna in 2022-2023 aimed at curbing Iran’s nuclear ambitions, but those negotiations failed to produce a new agreement. The current escalation risks further economic damage.
Analysts at Goldman Sachs estimated a 10% probability of a full-blown conflict that could push oil to $100 per barrel.
What to watch next
The Dow’s decline also reflected broader market concerns about geopolitical instability and its effect on global trade. The Strait of Hormuz is a critical chokepoint for oil shipments; any disruption there would have immediate consequences for energy prices and supply chains. For now, the market is pricing in a heightened risk of conflict, but not a certainty.
The VIX at 22 signals elevated anxiety, but not panic. Investors will be watching for any diplomatic moves — or further military escalation — in the coming weeks.
The Federal Reserve’s next moves on interest rates will also be influenced by how this geopolitical risk plays out, particularly if oil prices stay elevated and feed into inflation.
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