Global financial markets continue to navigate a complex and volatile landscape shaped by escalating geopolitical developments in the Middle East, fluctuating crude oil prices, and intense selling pressure across sovereign bond markets. Investor sentiment remains heavily defensive as market participants weigh the dual threats of persistent inflation and accelerated monetary tightening from major central banks, led by the U.S. Federal Reserve.
Sovereign debt markets have experienced notable turbulence. The yield on the benchmark U.S. 10-year Treasury note, which surged to 5.30%—its highest level since 2007—stabilized around 5.24%. Similarly, the 30-year U.S. Treasury yield climbed to 5.62%, marking a peak not seen since 2002, before easing back to 5.56%. Meanwhile, the 2-year Treasury yield, which touched 4.97% to reach its highest level since May 2024, settled near 4.90%.
This downward pressure on bond prices is primarily driven by fears that rising oil prices will reignite inflationary pressures, compelling the Federal Reserve and other global central banks to accelerate their monetary policy tightening cycles. Beyond inflationary concerns, the historic rise in 10-year Treasury yields is increasingly fueled by expectations that massive investments in artificial intelligence will further accelerate economic activity.
Concerns surrounding persistent inflation, growing public expenditures, and the rapid pace of corporate borrowing to finance AI-related investments have intensified market anxieties. Consequently, investors are demanding higher yields to hold long-term debt, and money markets are increasingly pricing in a series of potential Federal Reserve rate hikes over the coming year.
Geopolitical tensions continue to add volatility to energy markets. Brent crude oil for November delivery held steady near $103.10 per barrel, registering a 0.5% gain, after reports emerged denying that U.S. President Donald Trump was prepared to ease sanctions on Iran. Highlighting the ongoing friction, Secretary-General of Iran’s Supreme National Security Council Mohsen Rezaei targeted U.S. leadership, stating that President Trump is currently unable to either negotiate effectively or engage in conflict.
Amid these macroeconomic and geopolitical headwinds, President Trump recently hosted top technology executives at the White House for a high-profile summit dedicated to artificial intelligence. Attendees included Meta CEO Mark Zuckerberg, Alphabet CEO Sundar Pichai, Microsoft CEO Satya Nadella, Nvidia CEO Jensen Huang, Tesla and SpaceX CEO Elon Musk, Advanced Micro Devices CEO Lisa Su, Anthropic CEO Dario Amodei, and OpenAI President Greg Brockman. Following the gathering, President Trump described the discussions as highly productive and positive.
Concurrently, commentary from Federal Reserve officials has kept market participants on edge. Federal Reserve Board Governor Michael Barr noted that risks to achieving the central bank’s inflation goal have increased, while risks to the labor market have receded. Emphasizing the need to recalibrate monetary policy to balance these competing risks more effectively, Barr stated that additional policy adjustments will likely be necessary to guide inflation back to the target level within a reasonable timeframe.
Adding to the hawkish narrative, New York Fed President John Williams indicated that there is no immediate urgency to act following this month’s policy decision, while Chicago Fed President Austan Goolsbee described the continuation of inflation above the 2% target for over five and a half years as "playing with fire." Driven by these hawkish remarks, the U.S. dollar index hovered just above its previous close at 101.5, while spot gold traded down 0.1% at $4,180 per ounce.
Market analysts point out that if upcoming U.S. economic data—specifically growth figures and the core Personal Consumption Expenditures (PCE) price index—surpass expectations, it could further solidify expectations of continued Federal Reserve rate increases.
New York Stocks Close Lower Amid Rising Yields
Wall Street indices finished the day in negative territory as the relentless climb in bond yields continued to weigh on investor risk appetite. On the domestic macroeconomic front, the Conference Board Consumer Confidence Index fell to 81.9 in September, missing market consensus. Additionally, the U.S. Job Openings and Labor Turnover Survey (JOLTS) showed that available job openings declined to 7.07 million in August, also falling short of expectations.
Reflecting these pressures, the Dow Jones Industrial Average dropped 0.26%, the S&P 500 index lost 0.17%, and the Nasdaq composite slipped 0.09%. However, U.S. index futures pointed to a positive start ahead of the European trading session.
European Markets Trade Mixed Amid Geopolitical and Fiscal Pressures
European stock exchanges exhibited a mixed performance as ongoing geopolitical tensions and domestic fiscal concerns weighed on regional sentiment. Data released showed that the euro area economic sentiment indicator declined by 0.5 points month-over-month to 97.9 in September, while the consumer confidence indicator worsened from minus 15.5 to minus 16.5.
In Germany, public debt rose to €2.75 trillion in the second quarter. This increase occurred despite signs of economic recovery, driven primarily by off-budget special funding directed toward infrastructure, climate investments, and the defense sector. Meanwhile, European Union Energy Commissioner Dan Jørgensen reported that the EU has spent over €100 billion in extra payments this year for equivalent volumes of oil and natural gas, underscoring the urgent need to reduce the bloc’s reliance on imported fossil fuels.
In France, expectations of upcoming tax increases in the national budget weighed heavily on domestic equities. The French stock market remains under pressure due to persistent debt concerns and political stalemates ahead of next year’s presidential election. Furthermore, growing market anxiety that any potential U.S. ban on diesel exports would disproportionately impact Europe has further dampened regional risk appetite.
Expectations that the Federal Reserve may adopt a more aggressive stance against inflation, combined with rising European energy costs, pushed the euro-dollar exchange rate down to 1.1312, marking its lowest level since May 2025.
At the close, Germany’s DAX 40 index edged up 0.1% and Italy’s FTSE MIB advanced 0.09%, whereas France’s CAC 40 declined 0.53% and the UK’s FTSE 100 fell 0.45%. European index futures opened the following session on a mixed note.
Asian Markets Exhibit Divergent Trends
Ahead of crucial macroeconomic data releases from the United States, Asian stock markets traded cautiously and mixed. The Chinese government announced plans to implement new support policies to curb economic slowdown and evaluate measures to stabilize the real estate sector. In parallel, the People’s Bank of China lowered the 1-year loan prime rate across three policy banks by 25 basis points to support the broader economy.
On the data front, China’s official manufacturing Purchasing Managers’ Index (PMI) rose from 49.8 to 50.1 in September, signaling a return to expansionary territory for the manufacturing sector. Favorable weather conditions allowed factories to resume normal operations, while increased artificial intelligence investments provided additional support to industrial activity. Nevertheless, weak domestic demand and a prolonged property market slump continue to weigh heavily on household and business confidence, forcing the nation to rely largely on exports and industrial production to support growth. Geopolitical uncertainties and rising trade frictions continue to pose downside risks to the export outlook.
In Japan, August retail sales fell 1.2% month-over-month, defying expectations of an increase, while rising 2.7% year-over-year, which also missed forecasts. Japan’s industrial production contracted by 1.7% month-over-month—worse than anticipated—and posted a year-over-year increase of 3.4%, falling short of consensus expectations.
Reflecting these developments, Japan’s Nikkei 225 index advanced 2.1% and China’s Shanghai Composite gained 0.1%, while South Korea’s Kospi index retreated 0.2%. Hong Kong’s Hang Seng index traded in a flat range near the close.
Borsa Istanbul Closes Lower as Economic Coordination Board Convenes
Borsa Istanbul experienced a sell-off-heavy session, with the BIST 100 index closing down 2.40% at 12,290.58 points. In the Futures and Options Market (VIOOP), the October-maturity contract tied to the BIST 30 index dipped 0.19% during the evening session compared to the normal cash session close.
The dollar/Turkish lira rate ended the previous day relatively flat at 48.9894 and opened the interbank market slightly higher, trading up 0.1% at 49.0130.
Domestically, attention turned to a high-level Economic Coordination Board meeting chaired by President Recep Tayyip Erdogan, attended by key economic policy makers and institutional heads. Discussions centered on recent developments in domestic capital markets. Regarding ongoing investigations into investment funds, President Erdogan announced the establishment of a fully empowered board chaired by the Vice President to coordinate the liquidation process for funds slated for closure.
The Directorate of Communications issued a statement confirming the creation of the "Fund Coordination Council," designed to oversee the orderly and rapid liquidation of targeted funds while safeguarding legitimate investor rights and the public interest. Meanwhile, the State Supervisory Council launched comprehensive reviews and inspections regarding recent investment fund transactions within the capital markets. The Capital Markets Board presented a roadmap to expedite payouts to verified investors based on asset holdings and liquidity conditions. Officials reaffirmed their determination to resolve existing issues and enact necessary administrative and legal reforms to strengthen operational and supervisory mechanisms, preventing similar incidents in the future.
Market analysts note a heavy calendar of macroeconomic data releases ahead. Domestically, investors will monitor August unemployment figures, foreign trade balances, and the Services Producer Price Index. International releases include German unemployment and inflation data, alongside U.S. third-quarter GDP growth figures, core personal consumption expenditures, and ADP private sector employment reports. From a technical perspective, analysts highlight 12,200 and 12,100 points as key support levels for the BIST 100 index, with resistance positioned at 12,400 and 12,500 points.
