Financial News October 18, 2026: Saudi Stocks Rise as Qatar Hits Six-Year Low

Saudi shares climbed with oil on Sunday, but Qatar’s benchmark sank to its lowest close since April 2020 and Egypt posted its sharpest decline since February. The divided regional session followed a brutal week for U.S. technology stocks as investors confronted expensive crude, elevated borrowing costs and fresh doubts about debt-financed artificial-intelligence spending.

Market information is current as of approximately 3 p.m. Eastern on Sunday, October 18, 2026. Sunday’s Gulf and Egyptian stock-market figures are completed results. U.S., European, bond, oil, currency and metals markets are closed; their latest completed results are from Friday. Cryptocurrency prices remain live and are identified as intraday.

Global investors enter a new week with two dominant risks moving in the same direction: escalating Middle East tension is keeping oil near $110 a barrel, while high interest rates are forcing a harder examination of the enormous sums borrowed to finance artificial-intelligence infrastructure.

That combination split regional markets Sunday. Saudi Arabia’s oil-heavy benchmark gained, but Qatar fell to a six-year low and Egypt dropped sharply as security concerns intensified. The moves provide the first tradable signal since Friday’s broad Wall Street decline.

Saudi Shares Gain as Qatar and Egypt Slide

Saudi Arabia’s Tadawul All Share Index completed Sunday’s session 0.8% higher, led by a 2.1% rise in Saudi Aramco. Higher petroleum prices supported the kingdom’s market after Brent crude settled Friday at its strongest level since May.

The relief was not shared across the region. Qatar’s index fell 2% to 8,634, its lowest close since April 2020. Industries Qatar lost 4.3%, while Qatar Islamic Bank declined 2.6%.

Egypt’s EGX30 dropped 2.6%, its largest one-day decline since February. Cairo said it was prepared to support Saudi Arabia’s security after intensified attacks by Yemen’s Iran-aligned Houthis. The statement pulled Egypt more directly into a conflict already threatening oil facilities and regional trade routes.

Iranian Foreign Minister Abbas Araqchi said Sunday that Tehran’s offer to reopen the Strait of Hormuz within seven days remained available. The proposal has not yet produced an agreement, leaving a critical petroleum corridor exposed. Reuters reported the completed Gulf and Egyptian market results.

Oil Finishes Near $110 as Supply Fears Return

Brent crude futures rose $3.94, or 3.7%, to settle at $109.86 per barrel Friday, their highest finish since May 19. Traders weighed the risk of tighter Middle East supply and uncertainty about how much diesel Russia could provide to world markets.

The move matters beyond energy portfolios. Oil near $110 raises transportation and production costs, threatens household spending and makes it harder for central banks to bring inflation down. Energy shares can benefit from higher selling prices, but airlines, manufacturers, retailers and other fuel-sensitive businesses face margin pressure.

Friday’s settlement is a completed result and does not reflect any developments after the petroleum market closed. When futures reopen Sunday evening, investors will focus on Hormuz diplomacy, Houthi attacks and evidence of any additional disruption to Saudi production or exports.

Wall Street Ends a Difficult Week Lower

All three major U.S. indexes fell Friday. The S&P 500 lost about 1.1% to 7,659.44, the Dow Jones Industrial Average declined 0.3% to 52,002.41, and the Nasdaq Composite dropped 2.1% to 26,140.03.

For the week, the Nasdaq fell approximately 4.5%, its sharpest weekly retreat since June. The S&P 500 lost about 1.9%, while the Dow gained roughly 0.7%. The divergence showed how heavily the selloff was concentrated in technology and AI-linked shares.

CoreWeave plunged 12% Friday and approximately 25% during the week. The data-center operator’s bond yields rose above 15%, focusing attention on whether heavily indebted AI infrastructure companies can generate cash quickly enough to refinance their obligations. Broadcom fell 3.6%, and the Philadelphia Semiconductor Index declined for an eighth consecutive session.

Reuters detailed Friday’s AI-led Wall Street selloff, while its global market report tracked the wider movement across stocks, bonds, oil and currencies.

Treasury Market Sends a Cautious Signal

The benchmark 10-year Treasury yield finished Friday near 5.09%. Yields eased during parts of the week as investors moved toward government debt, even though hotter U.S. inflation kept the prospect of further Federal Reserve tightening alive.

That creates an uncomfortable combination for equities. A yield above 5% gives investors a comparatively attractive alternative to stocks, increases corporate refinancing costs and reduces the present value assigned to distant profits. Those effects are especially important for fast-growing technology companies and capital-intensive data-center operators.

Federal Reserve officials have signaled caution rather than a predetermined October increase. The next policy decision is due October 28. Markets will assess new economic data and Fed communications against the inflationary effect of oil, rather than treating one strong price report as decisive.

European Stocks Recover, but Global Technology Pressure Persists

European shares recovered Friday, helping the STOXX 600 and Britain’s FTSE 100 finish the week higher. Energy companies benefited from expensive crude, while easing sovereign-bond yields provided some support to rate-sensitive shares.

Asia’s performance was more uneven. Technology-heavy markets remained vulnerable to the global AI unwind. Reuters reported that Asia-focused hedge funds lost 2.6% Thursday and were down 6.8% during the first half of October, showing how a crowded investment theme spread losses beyond individual chipmakers.

Dollar Softens; Gold Stabilizes

The U.S. dollar headed toward its first weekly decline in more than a month Friday as Treasury yields eased from recent highs. The euro and yen gained ground, although high petroleum prices remain a challenge for energy-importing economies.

Spot gold finished near $4,167 per ounce Friday after rebounding earlier in the week. Bullion received support from the softer dollar and demand for defensive assets, but yields above 5% continue to compete with gold because the metal pays no interest.

Bitcoin Holds Above $81,000 in Weekend Trading

Bitcoin traded near $81,096 as of approximately 3 p.m. Eastern Sunday, down about 0.4% from its previous close. It moved between approximately $80,862 and $82,169 during the session.

Ethereum fell approximately 2% to $2,365.86, after trading between roughly $2,359.81 and $2,426.58. Cryptocurrency’s continuous trading makes it an early gauge of weekend risk, but Sunday’s modest moves did not match the severity of Friday’s technology-stock selloff.

Meta and Tesla Earnings Put the AI Trade on Trial

The coming week will test whether corporate results can restore confidence. Meta Platforms and Tesla are scheduled to report Wednesday, with Alphabet, Microsoft and Amazon also approaching closely watched updates.

Meta’s report will be particularly important after investors questioned whether revenue from AI products can justify accelerating infrastructure spending. The broader issue is no longer whether artificial intelligence will be economically important. It is whether the timing and size of returns will match the debt and equity valuations already committed to the buildout.

Financial Market Outlook

Investors should watch the reopening of oil futures, any progress on the Strait of Hormuz, additional Houthi attacks, the 10-year Treasury yield and earnings from the largest technology companies.

• Brent’s response after Friday’s $109.86 settlement.
• Whether Saudi Aramco’s Sunday gain carries into global energy shares.
• Any agreement to restore safer navigation through Hormuz.
• Whether CoreWeave and semiconductor shares stabilize.
• Meta and Tesla earnings, guidance and capital-spending plans.
• Federal Reserve signals before the October 28 policy decision.

The central question is whether strong corporate earnings can overcome two rising costs at once: the cost of energy and the cost of capital. Sunday’s mixed Middle East session suggests investors are rewarding direct beneficiaries of expensive oil while penalizing markets most exposed to regional instability.