Tech Stocks and Bond Yields Rattle Wall Street as Big Week Begins
Finn's Take· TL;DR- Tech stocks tumbled as rising Treasury yields pressured growth-focused companies, with chip sector leading declines across markets.
- Geopolitical tensions including Iran sanctions and trade uncertainty compounded selling pressure as investors reassess valuations near record levels.
- Nvidia earnings Wednesday and Fed Chair's Jackson Hole speech Friday will signal whether market momentum can sustain amid headwinds.
A Rough Start After Two Straight Weeks of Losses
The S&P 500 fell slightly on Monday as a drop in key technology stocks overshadowed a move lower in Treasury yields. The broad market index fell 0.28% to 7,652.86, while the Nasdaq Composite lost 0.76% and closed at 25,980.19. The Dow Jones Industrial Average, meanwhile, managed a modest gain of 140.15 points, or 0.26%, to close at 53,417.16. That split picture — the Dow up, tech-heavy indexes down — tells the story of a market under real stress.
Monday's session offered investors little relief after the prior week's broad selloff, and it was not enough to erase recent damage. The S&P 500 and Nasdaq Composite both snapped three-week winning streaks last week, while the Dow recorded its second consecutive weekly decline. The S&P 500 closed out last Friday up 0.4% but still lost 1.4% on the week. The Dow rose 1% on Friday but finished the week down 0.9%. And the Nasdaq increased 0.4% on Friday but shed 2% on the week.
Chips Are Falling — And Dragging Everything With Them
Declines in chip stocks weighed heavily on the broader market Monday. Micron Technology shed 5.8%, while Advanced Micro Devices and Broadcom pulled back more than 3% and 2%, respectively. The iShares Semiconductor ETF slid 2.7%. Other tech stocks fell as well, with Coherent and Lumentum dropping more than 4% each, and SanDisk dropping 6%.
Bond yields climbing to elevated levels have pressured technology stocks particularly hard, as higher borrowing costs reduce the present value of future earnings that growth-focused tech companies depend on. A jump in long-dated U.S. Treasury yields spooked markets last week as concerns over ballooning government debt, higher financing costs, and persistent inflation fears dented sentiment. The yield on the 30-year Treasury bond hit its highest level since 2007 earlier in the week. That's a significant milestone — a level of borrowing cost that hasn't been seen in nearly two decades, and one that forces investors to rethink just how much they're willing to pay for high-growth stocks.
Geopolitics and Iran Sanctions Add to the Uncertainty
Stocks were mixed as investors weighed new U.S. economic sanctions against Iran, failed U.S.-Canada trade talks and reciprocal tariff threats, along with earnings from chipmaking giant Nvidia and the Federal Reserve's annual symposium in Jackson Hole, Wyoming. Brent crude snapped a six-day run of gains, falling below $93 a barrel as traders waited for details of Treasury Secretary Bessent's plan to economically isolate Iran.
The week's trading illustrated the competing forces currently influencing Wall Street: corporate earnings remain generally supportive, economic data continue to point to underlying business strength, but higher long-term borrowing costs and geopolitical risks are challenging valuations that had pushed major indexes near record territory. For everyday investors, this is the uncomfortable reality of a market that has climbed sharply in 2026 — a market that is now being tested by forces largely outside corporate America's control.
What Could Move Markets the Rest of This Week
On the corporate earnings front, Nvidia will take center stage when it reports its quarterly results after the closing bell on Wednesday. The chip giant's earnings will provide another important test of whether the AI-driven market rally can maintain its momentum. Jefferies is projecting revenue of $95 billion, above consensus. A miss — or even cautious guidance — could send shockwaves through an already fragile tech sector.
Federal Reserve Chair Kevin Warsh will deliver his most significant speech since taking office at the Jackson Hole Economic Symposium on Friday, August 28, while the Fed's preferred inflation gauge — the July Personal Consumption Expenditures (PCE) price index — will be released on Wednesday, August 26. Together, the two events will provide critical clues for markets seeking clarity on the rate path. The 30-year Treasury yield recently spiked to 5.337%, its highest since June 2007, and money markets are already pricing in a near-certain 25-basis-point rate hike in December. With that backdrop, investors are hungry for any signal that relief may be on the way — and this week's calendar will either calm nerves or intensify them.