The War Next Door

At 1:15 in the morning on February 28, 2026, the first U.S. and Israeli strikes crossed into Iranian airspace. By the time Saudi Arabia's Tadawul exchange opened for trading, the world was watching to see whether the Kingdom's stock market would hold or break. What has unfolded over the three weeks since is more nuanced than either outcome: a market profoundly divided along sectoral lines, where the fortunes of an oil giant and a war-risk insurer tell very different stories than the ones buried beneath the surface.

Previous Coverage

Permission Without Participation: Shorting in the Middle East

Before this conflict began, the Tadawul was already one of the world's most expensive markets to short. Our November 2025 analysis documented the structural barriers, sovereign gatekeepers, and Sharia-compliance constraints that define the short side of Middle Eastern markets. Read it for essential context on what tools investors do and do not have available.

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The Opening Shock

The immediate market reaction on March 1, the first trading day following the February 28 strikes, was predictably sharp. The Tadawul All Share Index (TASI) plunged as much as 4.6% at the open, circuit breakers halted trading in at least 34 individual stocks within the first hour, and foreign institutional investors sold a net 2.1 billion riyals ($560 million) in Saudi equities on that single day alone, the largest single-day foreign outflow since the exchange opened to direct foreign participation in 2015.^[2]

What has happened since is the more interesting story. Saudi Arabia's domestic buyer base stepped in. Oil prices surged as Iran's retaliatory deployment of drone swarms and anti-ship missiles across the Strait of Hormuz triggered shipping suspensions by Maersk, MSC, Hapag-Lloyd and others.^[3] For a Kingdom whose economy is built around hydrocarbons, $100-plus oil is a powerful countervailing force, even in the middle of a war next door.

Saudi Arabia's fiscal position is dual-edged in this conflict. Higher oil prices directly improve government revenues and Aramco's earnings, both stabilizing forces for the equity market. But the same conflict that is producing those revenues is also driving away the foreign direct investment and tourism flows that Vision 2030 depends upon to diversify beyond oil.

The Oil Premium

Energy is the only sector to average a gain exceeding 5% since the conflict began, and the reasons are straightforward. Brent crude has surged as the Strait of Hormuz, through which roughly one-fifth of global oil supply travels daily, has been rendered functionally impassable by Iranian naval operations.^[3] For Saudi Aramco (2222.SR), the world's largest oil producer by market capitalization at approximately $6.5 trillion, this is a direct earnings tailwind. The company's stock has risen 9.8% since February 27.

The effect cascades through the commodity complex. SABIC Agri-Nutrients (2020.SR), which produces fertilizers for global export markets, has gained 12.3% as the blockade creates artificial scarcity for Gulf-sourced agricultural inputs.^[4] Saudi Electricity Company (5110.SR) has added 10.4%, reflecting the utility premium that accompanies any sustained energy supply shock. Yanbu National Petrochemical Company (YANSAB) has climbed 27.5%, as downstream chemical producers benefit from the same commodity price dynamics.

The Two-Speed Market

Strip away the oil majors and the picture changes materially. Of the 377 active, non-ETF stocks on the Tadawul tracked in this analysis, 191 are lower today than they were on February 27, compared to just 167 that are higher. The median stock return across the entire market is negative 0.24%, even as the market-cap weighted average sits at a positive 7.2%. The gap between those two numbers is almost entirely explained by Aramco's gravitational pull on the index.

The top gainers table below reveals a conflict-defined pattern. Al Rajhi Insurance (4030.SR) has surged 32%, a direct beneficiary of the war-risk insurance demand explosion that has accompanied the Strait of Hormuz disruption. Insurance premiums for Gulf tankers surged more than 400% following the Hormuz disruption.^[3] Al Rajhi's gain represents the market pricing in a structural shift in regional risk appetite, not just a short-term spike.

On the other side of the ledger, the consistent theme among losers is exposure to domestic economic activity, foreign investment flows, and consumer spending, all three of which have deteriorated since the conflict began.

The Banking Sector: Under Pressure

Saudi Arabia's financial services sector (46 active listed companies including the Kingdom's major banks) has averaged a decline of 1.65% since the conflict began, making it the second-worst performing sector on the exchange. The aggregate hides considerable dispersion: the largest banks have held up better than the smaller and mid-tier institutions, reflecting flight-to-quality dynamics within the sector itself.

Foreign institutional investors had been net buyers of Saudi equities for much of early 2026, attracted by the Kingdom's increasing weight in MSCI and FTSE Russell emerging market indices and Vision 2030's structural growth story. That changed on March 1. Cumulative net foreign selling across the first five trading days of the conflict exceeded 5.8 billion riyals ($1.55 billion), according to exchange-published flow data.^[2] Banks, as the primary vehicle for international capital allocation into the Saudi economy, absorbed a disproportionate share of that selling pressure.

Saudi Arabia vs. The Neighborhood

For context, Saudi Arabia's equity market has outperformed most of its Gulf neighbors since the conflict began. Dubai's financial market index has fallen approximately 17% over the same period, according to Bloomberg data.^[1] The UAE's economic model, built on frictionless movement of people, capital, and goods, is acutely exposed to regional instability in a way that Saudi Arabia's oil-backstopped economy is not. Kuwait's exchange suspended trading entirely on March 1 before resuming at a significantly reduced level.

Saudi Arabia's relative resilience has two structural explanations. First, its oil revenues provide a direct fiscal benefit from elevated crude prices, partially offsetting the economic disruption. Second, the domestic investor base has proven more willing to act as a buyer of last resort than in smaller Gulf markets, absorbing much of the foreign institutional selling that characterized the first week of conflict.

A Market With No Short Side

The Tadawul's relative resilience since February 28 has a structural explanation that goes beyond oil revenues and domestic buyers. Saudi Arabia's short-selling infrastructure is so nascent that the market has few mechanisms through which bearish conviction can be expressed at scale. The result is a market where declines are cushioned not only by fundamental support, but by the near-absence of the short-selling pressure that would amplify losses in a more developed market.

As Activ8 Insights documented in our November 2025 analysis of Middle Eastern short selling, Saudi lending fees stood at 405 basis points before the conflict began, roughly seven times the 60-basis-point EMEA average. That spread reflects structural constraint: limited float available to borrow, a cautious lender base, and lingering institutional uncertainty about how authorities would respond if short interest surged on a prominent name.^[8] The war has almost certainly widened that spread further as foreign lenders pull exposure from the region entirely.

The same sovereign wealth funds that our previous analysis identified as the Tadawul's largest securities lenders are now serving a dual role in this crisis: as the dominant buyers absorbing foreign institutional selling, and as the lenders whose willingness to lend shares determines whether any bearish counterweight to the rally exists at all. Their decisions in the coming weeks will shape both the pace of the market's recovery and the cost of betting against it.

Short selling in Saudi Arabia is legally permitted but structurally constrained. It is restricted to securities on the Capital Market Authority's List of Designated Securities, requires sellers to hold an "exercisable right" to shares before execution, and mandates that retail participants route through a licensed lending agent.^[8] The practical effect is a market where the most sophisticated bearish tool available to international investors, building a short position against a declining stock, remains expensive, difficult to execute, and subject to regulatory discretion in a jurisdiction where stability is an explicit policy goal.

Consider what this means for the current divergence. Aramco's 9.8% gain is easily expressible as a long position: any investor can buy the stock. But the declines in financial services (average -1.65%) and technology (average -2.31%) are not symmetrically accessible to investors who foresaw them. The stocks that have fallen hardest since February 27, Elm Company (-14.9%), Sure Global Tech (-19.0%), Saudi Networkers Services (-18.1%), are exactly the kind of mid-cap domestically oriented names where securities lending availability is thinnest and borrowing costs highest. Investors who correctly anticipated that a regional conflict would hurt domestic IT services and dampen FDI flows had almost no practical mechanism to profit from that thesis.

What to Watch

Three variables will determine whether the current bifurcation deepens or reverses. First, the duration of the Strait of Hormuz disruption: a sustained closure would continue to benefit Saudi energy majors but would increasingly impair Saudi Arabia's own ability to export product at volume, eventually reversing Aramco's tailwind. Second, the trajectory of Vision 2030 foreign direct investment: if international contractor participation and capital market access continue to deteriorate, the construction, real estate, and technology sectors currently absorbing the brunt of the market's decline face further pressure. Third, the pace of domestic consumer spending: Saudi Arabia's non-oil GDP was growing at 4.8% before the conflict began. The key question is how much of that momentum survives a sustained period of regional military operations.^[6]

For now, the Tadawul is holding together better than most analysts anticipated in the immediate aftermath of the February 28 strikes. But the market telling two very different stories: one for Aramco and the commodity complex, another for everyone else. It is not a stable equilibrium. At some point, the divergence resolves. The direction it resolves in will say a great deal about whether Saudi Arabia's economic transformation can withstand a war that it did not start but cannot ignore.