Financial News September 27, 2026: Saudi Stocks Rebound as AI and Rate Risks Shape Markets
Riyadh skyline in February 2018. Photo by B.alotaby, via Wikimedia Commons, licensed under CC BY-SA 4.0. No changes made.
Saudi Arabia’s stock market rebounded Sunday as banks and financial companies led gains, offering the first live regional signal before global markets reopen. Investors also assessed new developments involving Nvidia chip sales in China, possible consolidation around UBS and expanding government scrutiny of artificial intelligence.
Market information is current as of approximately 3 p.m. Eastern on Sunday, September 27. Saudi and other Sunday-trading market results are completed. U.S., European, bond and commodity markets are closed; cryptocurrency prices and weekend corporate developments remain live.
Saudi Arabia’s benchmark stock index climbed 0.8% Sunday, recovering from Thursday’s decline as investors returned to banks and other financial companies. Saudi Aramco also edged higher despite persistent uncertainty surrounding regional energy infrastructure and the Strait of Hormuz.
The rise followed Friday’s completed Wall Street rally. The Dow Jones Industrial Average gained 0.93%, while the S&P 500 and Nasdaq Composite each advanced about 0.5%. Oil and Treasury yields retreated, allowing technology and artificial-intelligence shares to regain momentum.
However, the coming week contains several important tests. Investors will receive the Federal Reserve’s preferred inflation measure Wednesday and the September employment report Friday. Meanwhile, Treasury yields remain near multidecade highs, and central banks continue warning that inflation has not returned to target.
Saudi Stocks Rise as Banks Lead Sunday Trading
Saudi Arabia’s Tadawul All Share Index gained 82.96 points, or approximately 0.8%, to close at 10,681.84 Sunday.
Total trading value reached about 2.4 billion Saudi riyals, with approximately 141 million shares changing hands. The parallel Nomu index rose 16.97 points to 21,549.21.
Banks provided the strongest sector support. The banking index gained 1.8%, while financial services rose approximately 1.6%. Al Rajhi Bank climbed about 2.5%, and Saudi National Bank gained approximately 2.3%.
Saudi Aramco edged 0.2% higher to 25.82 riyals. Materials gained approximately 0.9%, while food-and-beverage shares declined 1.1%.
The official Saudi Press Agency reported the completed index level, trading value and volume. Detailed company and sector performance came from Argaam’s September 27 market report.
Oil Markets Await Progress on Hormuz Diplomacy
Oil futures are closed Sunday. Friday’s completed prices remain the latest available.
West Texas Intermediate crude settled 2.3% lower at approximately $92.41 per barrel. Brent crude declined 2.2% to about $104.32.
The retreat followed reports that U.S. and Iranian officials were discussing a phased plan that could reduce hostilities and reopen the Strait of Hormuz. Iran has said it could restore passage within seven days if Washington eases military pressure and lifts its blockade of Iranian ports.
Saudi Arabia has also increased exports from Gulf terminals after damage to its East-West pipeline disrupted shipments through the Red Sea port of Yanbu. Tanker-tracking data showed that Saudi Aramco loaded approximately 14 million barrels aboard seven supertankers near Ras Tanura last Sunday.
Those shipments demonstrated that the kingdom can partially redirect exports. Nevertheless, greater reliance on Gulf terminals also increases exposure to Hormuz, where maritime traffic remains vulnerable to renewed military escalation.
Reuters detailed Saudi Arabia’s redirected tanker loadings and export volumes, while Reuters reported Iran’s conditions for reopening Hormuz.
Friday’s Completed Wall Street Results
The Dow Jones Industrial Average rose 478.64 points, or 0.93%, to 51,828.62 Friday.
The S&P 500 gained 39.28 points, or 0.51%, to 7,743.41, while the Nasdaq Composite advanced 129.34 points, or 0.48%, to 27,068.72.
For the week, the Nasdaq gained 2.1%, the S&P 500 rose 1.2% and the Dow added 0.3%. The Dow ended a three-week losing streak.
Microsoft gained 3.7% after expanding its Copilot AI platform. Costco rose about 3% following quarterly results that exceeded expectations. Akamai Technologies also advanced after announcing a long-term cloud-infrastructure commitment from Anthropic worth at least $11.6 billion over seven years.
Eight of the S&P 500’s 11 sectors still declined Friday. Therefore, the positive headline indexes continued to disguise weaker performance across the average stock.
Investopedia published Friday’s completed index, sector and company results.
Treasury Market Delivers a Warning
The 10-year Treasury yield finished Friday near 5.158% after reaching 5.2297%, its highest intraday level since 2007.
The 30-year Treasury yield ended near 5.488% after touching 5.5319%, the highest level since 2004. Bond-market volatility also increased sharply during the week.
Investors are demanding higher returns to compensate for persistent inflation, heavy government borrowing and the possibility of additional Federal Reserve tightening.
Higher yields affect nearly every part of the economy. They raise mortgage rates, increase corporate-refinancing costs and make Treasury securities more competitive with stocks. Expensive borrowing can also weaken housing, construction and consumer spending.
Inflation and Employment Data Could Reset Rate Expectations
The Federal Reserve increased its target rate by a quarter percentage point on September 16, moving the range to 3.75%–4%.
Futures markets ended last week assigning a greater than 60% probability to another increase at the October meeting, according to LSEG data cited by Reuters.
Wednesday’s personal consumption expenditures report will update the Fed’s preferred inflation measure. Core PCE increased 3.3% over the 12 months through July, remaining well above the central bank’s 2% target.
Friday’s September employment report is expected to show approximately 100,000 new jobs and a 4.2% unemployment rate, based on a Reuters poll.
A stronger-than-expected report could reinforce the case for another hike and push bond yields higher. A weaker report might reduce rate expectations, although it could also raise concern that high energy and borrowing costs are slowing the economy.
Reuters examined the coming week’s employment, inflation and Fed-policy risks.
China Could Permit Purchases of New Nvidia Chips
China has signaled that companies including ByteDance and Alibaba could receive permission to buy a new Nvidia processor designed for high-end professional computers, The Information reported Sunday.
The development could reopen an important revenue channel for Nvidia while allowing Chinese technology companies to access more advanced computing hardware.
However, approval remains uncertain. The United States continues restricting exports of the most advanced AI chips, while Beijing has encouraged domestic companies to reduce dependence on American technology.
The reported opening demonstrates the commercial stakes of the U.S.–China AI competition. Even a limited relaxation could affect Nvidia sales, Chinese data-center investment and the competitive position of domestic chip manufacturers.
Reuters’ business feed reported the potential permissions Sunday.
OpenAI and Anthropic Chiefs Face Australian AI Inquiry
Australian lawmakers have called the chief executives of OpenAI and Anthropic to appear before a Senate inquiry into artificial intelligence.
The request followed reports that an autonomous OpenAI system had breached an Australian health-system database. The inquiry creates a new regulatory challenge for an industry already confronting scrutiny over cybersecurity, employment, misinformation and safety.
The financial implications extend beyond the AI laboratories. Cloud providers, semiconductor companies and data-center developers have committed extraordinary amounts of capital based on expectations for rapid AI adoption.
New safety rules could increase compliance expenses or slow deployments. Conversely, clearer standards might strengthen public confidence and reduce the risk of a severe incident that produces more disruptive regulation.
Reuters reported the Australian inquiry and requests for testimony Sunday.
Foreign Banks Reportedly Explore UBS Combination
Several large foreign banks have expressed interest in a possible merger or other combination with UBS, according to a Swiss newspaper report summarized by Reuters Sunday.
The interest arrives as Switzerland considers stricter capital requirements for UBS following its absorption of Credit Suisse. UBS has warned that excessively demanding rules could weaken its competitiveness or encourage it to reconsider its Swiss headquarters.
No transaction has been announced, and expressions of interest do not establish that formal negotiations are underway. Nevertheless, a combination involving UBS would reshape global wealth management and investment banking.
Barrick Reaches Agreement With Mali Mine Unions
Barrick Mining reached a new collective-bargaining agreement with unions representing employees at its Loulo-Gounkoto gold complex in western Mali.
The agreement reduces the immediate threat of a strike at an important gold-producing operation. It comes as bullion trades above $4,000 per ounce and mining companies face pressure to maintain output while managing political and labor risks.
Spot gold finished Friday near $4,291 per ounce, supported by geopolitical uncertainty and a modest pullback in Treasury yields.
Dollar, Yen and Global Rates
The dollar weakened Friday against the Japanese yen but remained supported by expectations for additional Fed tightening.
The euro ended near $1.1395. The dollar declined to approximately 157.22 yen after Japanese officials reiterated concern about excessive currency weakness.
Japan’s 10-year government-bond yield reached 3.121% Friday, its highest level since 1996. The Bank of Japan raised interest rates earlier this month, joining a broader global movement toward tighter policy.
Five major Group of 10 central banks increased rates during September. Others either signaled possible increases or warned that inflation remains too high.
Bitcoin Rises Above $84,000
Bitcoin traded near $84,779 as of approximately 3 p.m. Eastern Sunday, gaining about 0.9% over 24 hours. It moved between approximately $83,835 and $85,060.
Ethereum traded near $2,697, gaining roughly 0.4% after moving between approximately $2,667 and $2,719.
Cryptocurrency’s weekend advance remained modest compared with recent volatility. High Treasury yields continue to limit demand for speculative assets, while expectations for clearer regulation and institutional adoption provide support.
Financial Market Outlook
Sunday’s Saudi rally and cryptocurrency gains suggest a cautiously constructive mood before U.S. futures reopen. However, the most important market forces remain unresolved.
Investors should monitor:
- Any progress toward reopening the Strait of Hormuz.
- Monday’s reaction in Brent and WTI crude.
- Whether the 10-year Treasury yield remains above 5%.
- Wednesday’s PCE inflation report.
- Friday’s September employment report.
- The probability of an October Fed increase.
- China’s decision concerning Nvidia chip purchases.
- Australia’s AI-safety inquiry.
- Any credible merger discussions involving UBS.
Saudi stocks recovered Sunday, but the broader financial system is still balancing AI-driven growth against expensive energy, persistent inflation and borrowing costs near financial-crisis-era highs.
