Oil Surges Above $104, Treasury Yields Hover Near 24-Year Highs as AI Investment Turns to Debt

Global Financial Focus

Oil Surges Above $104, Treasury Yields Hover Near 24-Year Highs as AI Investment Turns to Debt

Times Square Global Live | New York

Wall Street is confronting a powerful combination of rising energy prices, historically high bond yields and mounting concerns over the debt financing behind the artificial intelligence investment boom.

U.S. stock futures moved lower early Thursday, October 8, as investors reassessed the outlook for inflation, interest rates and corporate borrowing. Futures tied to the Dow Jones Industrial Average fell about 0.6%, S&P 500 futures declined approximately 0.3%, and Nasdaq-100 futures dropped around 0.5%.

Markets across Asia and Europe also retreated. Japan’s Nikkei 225 lost 1.4%, South Korea’s Kospi fell 2.6%, while European equities came under pressure from higher energy costs, rising bond yields and concerns over France’s public finances.

## Oil Climbs Above $104 a Barrel

Brent crude surged nearly 4% at one point on Thursday, moving above $104 a barrel. U.S. West Texas Intermediate crude rose beyond $91 a barrel.

The rally was driven by several overlapping supply risks:

* Increasing attacks on commercial vessels and oil tankers in the Gulf;
* Continued tensions involving the United States and Iran;
* Renewed conflict in Yemen and attacks affecting Saudi Arabia;
* Hurricane Isaias approaching offshore production facilities in the U.S. Gulf of Mexico;
* A larger-than-expected decline in U.S. crude inventories.

Producers have shut down approximately 25% of current offshore oil output and more than 16% of natural gas production in the Gulf of Mexico because of the storm.

U.S. commercial crude inventories declined by 3.2 million barrels in the week ending October 2, almost twice the 1.7-million-barrel decline forecast by analysts.

Before the current Middle East conflict, the Strait of Hormuz carried shipments equivalent to roughly 20% of global oil and fuel supplies. Even without a complete disruption, heightened security risks can increase shipping, insurance and logistics costs, adding a geopolitical premium to energy prices.

## Higher Energy Costs Revive Inflation Concerns

Rising oil prices are once again intensifying concerns about persistent inflation.

Higher energy costs affect more than gasoline, diesel and aviation fuel. They can spread through transportation, manufacturing, food production and global supply chains, ultimately raising prices for businesses and consumers.

The minutes from the Federal Reserve’s September meeting showed that policymakers differed over the reasons for raising interest rates, but most officials considered another increase likely before the end of the year.

Financial markets currently assign less than a 20% probability to another rate increase in October. The implied probability of a December increase, however, is close to 80%.

The market therefore expects the Fed to pause in October while retaining the option of further tightening if elevated energy prices continue to fuel inflation.

## Treasury Yields Remain Near 24-Year Highs

The yield on the benchmark 10-year U.S. Treasury remained around 5.3% after briefly reaching approximately 5.36% on Wednesday, near its highest level since 2002. The 30-year Treasury yield remained close to 5.7%.

Higher Treasury yields raise borrowing costs throughout the economy, affecting mortgages, corporate bonds, auto loans and other forms of credit.

Housing-related stocks fell about 2.3% Wednesday, while homebuilders declined approximately 2.9%. Smaller companies, which often depend more heavily on floating-rate or short-term financing, also came under pressure. The Russell 2000 small-cap index dropped 1.3%.

Elevated government bond yields also make low-risk fixed-income assets more attractive relative to stocks, putting additional pressure on companies whose valuations depend on profits expected far into the future.

## The AI Boom Enters a Debt-Financing Phase

The shift in market sentiment comes as artificial intelligence companies require increasingly large amounts of capital to purchase advanced chips, build data centers and secure the electricity needed to operate them.

Recent reports indicate that several major companies, including SpaceX, Broadcom and Oracle, are exploring or pursuing substantial financing connected to AI infrastructure.

SpaceX is reportedly considering approximately $30 billion in investment-grade bonds and another $10 billion in loans to finance purchases that could include Nvidia chips. Broadcom is reportedly exploring financing of as much as $50 billion.

The first stage of the AI investment boom was largely funded by the strong cash positions of major technology companies. Increasingly, however, businesses are turning to loans and corporate bonds to finance the next phase of expansion.

This does not necessarily mean that the AI boom is ending. Large capital investments could continue to support revenue growth across semiconductors, memory, data centers, power generation and cooling systems.

Debt, however, changes the risk profile. Loans and bonds must be serviced on schedule, regardless of whether AI projects have begun generating sufficient revenue.

If the commercial returns from AI fall short of current expectations, the risk could spread beyond technology shares to corporate bonds, banks, bond funds and retirement portfolios holding the debt.

## Strong Results Are No Longer Enough

Samsung Electronics projected a sharp increase in third-quarter operating profit, but the result still fell short of the market’s elevated expectations. Its shares declined about 2.4%, contributing to broader weakness in Asian and U.S. semiconductor stocks.

Taiwan Semiconductor Manufacturing Company reported record third-quarter revenue, up roughly 50% from a year earlier, yet its shares also declined.

The reaction illustrates how demanding AI-related valuations have become. Strong financial performance may no longer be enough; companies must exceed increasingly optimistic forecasts to support further gains.

## Wall Street Reassesses Risk

The three major U.S. stock indexes closed lower on October 7, retreating one day after the S&P 500 and Nasdaq reached record closing highs.

The Dow Jones Industrial Average fell 0.7%, the S&P 500 declined 0.2%, and the Nasdaq Composite lost 0.2%. The market’s underlying weakness was broader than the headline indexes suggested, with declining stocks outnumbering advancing shares by more than three to one on the New York Stock Exchange.

The risk transmission now confronting investors is increasingly clear:

**Geopolitical and weather-related supply risks are lifting oil prices. Higher energy costs are reviving inflation concerns. Inflation and expanding government debt are pushing Treasury yields upward. Higher financing costs are beginning to test an AI investment boom increasingly supported by corporate borrowing.**

The approaching U.S. third-quarter earnings season will provide a critical test. Investors will be looking beyond headline profit growth to determine whether hundreds of billions of dollars in AI capital spending are producing sustainable revenue and measurable returns.

Sources: Reuters, The Associated Press, The Wall Street Journal and public market data**
Times Square Global Live

*Editor’s note: Financial markets remain volatile. Figures reflect market conditions before the U.S. opening bell on October 8, 2026.*