Gulf stock markets fall amid Iranian uncertainty
Saudi stock exchange falls for fourth consecutive session, Egyptian index plunges 1.5% on regional instability. Investors dump stocks amid threats of supply blockades and lack of progress in peace talks.
Four consecutive sessions in the red. The Saudi Tadawul exchange slipped another 0.3%, while Egypt's EGX 30 plunged 1.5% in a single trading session — its fifth straight decline. Investors are pulling money out of the region with a methodical pace that unnerves even seasoned traders. The reason is simple: geopolitics has returned to the Gulf, and it's not going away.
On Sunday, May 18, all major regional exchanges closed in the red. Kuwait fell 0.9%, Bahrain lost 0.2%, Oman dropped 0.3%, and Qatar weakened 0.1%. Markets digested Trump's Friday comments that he is "losing patience" with Iran, and the response from Iranian Foreign Minister Abbas Araghchi — Tehran "does not trust" Washington.
When presidents' words move indices
The Friday exchange of rhetoric between Trump and Araghchi dashed hopes for a quick de-escalation. Trump said he discussed with Xi Jinping the inadmissibility of Iran having nuclear weapons and the need to open the Strait of Hormuz. Araghchi countered: negotiations are possible only if the US demonstrates "seriousness."
Markets instantly repriced risks. The war premium in oil prices rose. Insurance rates for ships risking passage through Hormuz spiked. Investors began dumping shares of companies tied to regional trade and petrochemicals.
Saudi Arabian Mining lost 2.3% of its market cap in a day. Petrochemical giant Saudi Basic Industries Corp (SABIC) fell 2.5%. The materials and consumer sectors dragged the index down — traders are voting with their feet against any dependence on the strait's stability.
Cairo hit by fifth wave
Egypt's EGX 30 posted the bleakest picture in the region. A fifth consecutive session of decline, down 1.5% — the largest single-day drop since April 7. The index closed at 52,364 points.
Commercial International Bank, Egypt's largest bank with a market cap of about $15 billion, lost 1.1%. GB Corp plunged 5.8% after releasing its quarterly report: consolidated profit fell 30.4% due to higher financial costs and regional issues. Of the 31 stocks traded on the exchange, 25 closed in the red.
The Egyptian market is doubly sensitive to the Gulf situation. The country depends on remittances from migrant workers in Saudi Arabia and the UAE. If instability hits Gulf economies, Cairo will see a reduction in foreign currency inflows.
Petrochemicals and cement under pressure
The sectoral breakdown of the decline speaks for itself. In Saudi Arabia, losses were led by the cement industry, hospitality, and retail. For a country building megaprojects like NEOM and betting on tourism, this is a worrying sign.
In Kuwait, the 0.9% drop was the deepest among Gulf states after Saudi Arabia. Investors fear that escalation will affect oil infrastructure — and Kuwait, lacking a serious air defense system, is vulnerable to IRGC threats.
Qatar's index lost a modest 0.1%, but the details are worse than the headline. Dukhan Bank fell 0.7%, Mesaieed Petrochemical Holding dropped 1.3%. Qatari LNG tankers are stuck in ports — the blockade of the strait has paralyzed gas exports, which were the foundation of the economic boom in recent years.
IPO market sinks
The decline in indices is only part of the picture. The regional IPO market, which boomed for four consecutive years, is collapsing. IPO volume in Gulf states fell from $13 billion to less than $6 billion in 2025.
Saudi Arabia's EFSIM Facilities Management canceled a $89 million listing. Saudi Arabia's sovereign wealth fund froze preparations for several IPOs. The main Tadawul index has fallen nearly 12% since the start of the year — investors are simply not ready to buy new paper when geopolitics is stormy.
The average post-listing gain in Riyadh has turned negative. Only two of the kingdom's ten largest IPOs trade above their offer price. The specter of Hormuz kills risk appetite faster than any central bank.
Who benefits from this storm
Investors in US Treasuries and gold are seeing capital inflows. Money is fleeing emerging markets for safe havens. The yield on six-month US Treasuries remains above 5.4% — for Middle Eastern investors, this is a tempting alternative to stocks of companies dependent on shipping through Hormuz.
Defense contractors are another beneficiary. Each new round of escalation means new contracts for air defense systems, radars, and electronic warfare equipment. Lockheed Martin and Raytheon gain on every round of tension.
Losers are all those tied to the region's physical economy. Saudi petrochemical giants are losing export revenues. Egyptian banks face higher funding costs. Qatari gas companies cannot ship LNG. Kuwaiti and Bahraini financial firms watch trading floors empty.
What will happen in a month
If the rhetoric from Trump and Araghchi remains at the same level, the decline will continue. Analysts do not expect a V-shaped rebound — too much uncertainty is concentrated in one strait.
The most likely scenario is a slow-moving correction with occasional bounces on rumors of talks. Every report of contacts between Washington and Tehran will lift markets by 1–2%. Every denial will send indices to new lows.
Investors who survived the 2008 crisis know the rule: geopolitical risks don't last forever, but they can destroy a portfolio faster than any economic cycle. Gulf markets are now pricing in exactly this scenario — a slow bleed with no visible bottom. And while Trump and Araghchi flex their rhetorical muscles, trading terminals from Kuwait to Cairo are turning red.
— Editorial Team
