October 13, 2026

Wall Street Starts Week Under Pressure as Iran Sanctions, Bond Yields and Nvidia Loom

NEW YORK — Wall Street is heading into the new trading week with investors confronting a difficult combination of geopolitical tension, elevated Treasury yields and a closely watched earnings report from Nvidia, after major U.S. stock indexes finished last week lower.

Global markets were broadly cautious early Monday as investors awaited details of new U.S. sanctions on Iran. Oil prices fell in Asian trading, while stocks in several major overseas markets declined, reflecting uncertainty over the economic consequences of the latest measures and the continuing conflict in the Middle East. (Reuters)

The backdrop gives investors in New York little room for complacency after a volatile stretch in which higher borrowing costs and geopolitical concerns have repeatedly pressured technology shares and other risk-sensitive assets.

The S&P 500 and Nasdaq both ended last week lower, snapping three-week winning streaks, while the Dow Jones Industrial Average recorded a second consecutive weekly decline. The S&P 500 lost 1.43 percent for the week, the Nasdaq fell 2.05 percent and the Dow declined 0.85 percent. (Reuters)

Treasury yields remain one of the market’s central concerns.

Long-dated government borrowing costs have climbed to levels not seen in years, reducing the relative appeal of equities and raising questions about the cost of financing across the economy. The U.S. Treasury has responded by expanding its liquidity-support buyback program for longer-dated securities, with the maximum size of certain operations scheduled to at least double beginning Sept. 9. (U.S. Department of the Treasury)

The Treasury’s own published data showed the 20-year and 30-year Treasury yields at 5.28 percent on Aug. 18, illustrating the sustained pressure at the long end of the bond market. (U.S. Department of the Treasury)

Higher yields can weigh particularly heavily on technology and other growth companies because their valuations depend in part on expectations for profits far into the future. That dynamic has contributed to recent swings in semiconductor and artificial-intelligence stocks.

Nvidia Takes Center Stage

The most closely watched corporate event of the week is likely to come Wednesday, when Nvidia is scheduled to report second-quarter fiscal 2027 financial results after the market closes.

The company has become one of the most influential stocks in the major U.S. indexes, making its results an important test not only for Nvidia shareholders but for the broader market’s confidence in the artificial-intelligence investment cycle.

Nvidia reported record first-quarter fiscal 2027 revenue of $81.6 billion, up 85 percent from the same period a year earlier. Data-center revenue reached $75.2 billion, up 92 percent year over year. (NVIDIA Investor Relations)

Its second-quarter results are scheduled for 2 p.m. Pacific time Wednesday, according to the company. (NVIDIA Investor Relations)

Expectations surrounding artificial intelligence have helped drive some of the market’s largest companies to increasingly important positions within the S&P 500 and Nasdaq. That concentration means a sharp move in a company such as Nvidia can have an outsized effect on the broader indexes.

The company has also deepened its connections with major New York financial institutions. Earlier this month, Nvidia announced partnerships with Apollo, BlackRock, Blackstone, Brookfield, Goldman Sachs and KKR to establish financing platforms intended to mobilize more than $500 billion in third-party capital for artificial-intelligence infrastructure over time. (NVIDIA Investor Relations)

Geopolitics Returns to the Market

Investors are also monitoring Washington’s next steps toward Iran.

Global markets opened the week anticipating additional U.S. economic sanctions, with investors weighing the possibility that stronger measures could affect energy flows, inflation and international trade. Oil prices fell early Monday despite continuing geopolitical uncertainty, while gold advanced as investors sought traditional safe-haven assets. (Reuters)

The market’s response to the conflict has been uneven. Oil prices rose for six consecutive sessions through Friday as fears of supply disruptions intensified, while Treasury yields and inflation concerns contributed to pressure on equities. (Reuters)

For Wall Street, the connection between energy prices and interest rates is particularly important. A sustained rise in oil can add to inflationary pressure, potentially complicating the outlook for monetary policy and keeping borrowing costs elevated.

Technology stocks have already demonstrated their sensitivity to that combination. Earlier last week, rising bond yields and concerns surrounding the Middle East contributed to a broad technology selloff, with semiconductor shares among the hardest hit. (Reuters)

Investors will therefore enter Monday balancing several competing signals: corporate earnings remain strong in key sectors, but long-term interest rates are high, geopolitical risks are unresolved and valuations in parts of the technology market leave little tolerance for disappointment.

The coming days could provide a clearer indication of whether Wall Street can resume the momentum that carried major indexes higher earlier this summer or whether rising yields and geopolitical uncertainty will continue to restrain risk appetite.

For now, the week begins with investors watching three places at once: Washington for sanctions policy, the Treasury market for interest rates and Silicon Valley for Nvidia’s results.

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