Gulf stock markets ended mostly lower on Sunday as investors assessed the economic and security implications of an attack on Riyadh's international airport and a renewed escalation involving Yemen's Houthi movement. The declines were uneven, but the weakest closes were concentrated in Qatar and Egypt as the incident added another layer of uncertainty for aviation, energy and regional trade.

Saudi losses narrow by the close

Saudi Arabia's Tadawul All Share Index, or TASI, recovered part of its early decline before finishing 0.2% lower, Reuters reported. Saudi National Bank fell 1.1%, while Saudi Aramco slipped 0.2%. The Saudi Exchange describes TASI as the benchmark that tracks all listed shares on its main market, making the relatively modest close an indication that selling pressure did not spread evenly across the exchange.

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The session followed Saturday's missile attack at King Khalid International Airport, which Saudi authorities said killed 12 people and wounded more than 300. The Associated Press reported that another projectile struck the airport complex on Sunday and that the airport remained closed. The Houthi movement claimed responsibility for the attacks and warned airlines and travelers to avoid Saudi airports.

Qatar and Egypt post steeper declines

Qatar's benchmark index dropped 1.5% for a fourth consecutive losing session and reached its lowest close since May 2020. Qatar Islamic Bank declined 1.7%. Outside the Gulf, Egypt's EGX30 fell 2% after a session break, with every component ending in negative territory. Commercial International Bank, the index's largest lender, lost 1.6%.

Those moves suggest investors placed a higher premium on near-term regional risk even though the Saudi benchmark itself stabilized from its intraday lows. Market participants are weighing the possibility of further attacks, continued flight disruption and a broader military response. None of those outcomes is certain, and the day's price action does not by itself establish a lasting change in regional asset values.

Energy and shipping remain the transmission channels

The immediate financial concern extends beyond airports. Renewed fighting around Yemen could affect the Bab el-Mandeb Strait, an important shipping route between the Red Sea and the Gulf of Aden. The route provides an alternative connection for commercial traffic when vessels avoid the Strait of Hormuz. Any prolonged disruption can raise freight, insurance and delivery costs even if oil production facilities continue operating.

That risk arrives while investors are already monitoring tanker attacks and maritime disruption around Hormuz. AP reported that the latest escalation also coincided with a major energy conference in Riyadh, where organizers kept events on schedule despite travel complications. The overlap puts business continuity, air links and energy logistics in the same risk calculation for companies with regional exposure.

What to watch next

The next signal will come from whether airport operations normalize and whether warnings to airlines persist. Investors will also monitor any official Saudi response, shipping conditions near Bab el-Mandeb and Hormuz, and whether losses broaden when more regional markets reopen. Trading volumes, airline schedule changes and insurance pricing could help distinguish a short-lived shock from a longer adjustment in regional risk premiums. Sunday's close shows a clear rise in caution, but not a synchronized market panic: Saudi shares contained their decline while Qatar and Egypt absorbed sharper moves.

Sources

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