Tech Sell-Off, Nvidia Anxiety and Iran Sanctions Put Markets on Edge

Monday’s market decline was less a broad panic than a concentrated retreat from technology and semiconductor shares. Investors were reluctant to add risk before Nvidia’s earnings, which were expected to provide a fresh test of artificial-intelligence demand, while geopolitical and trade-policy risks kept sentiment fragile. Tuesday then produced a mixed regional picture rather than a uniform continuation of the sell-off. 1223

Technology was the main source of pressure

The most immediate catalyst was investor caution ahead of Nvidia’s Wednesday results. Analysts were looking for quarterly revenue of roughly $92 billion, leaving the chipmaker with unusually high expectations to meet. Nvidia fell about 2.9% on Monday, and weakness across semiconductor stocks pulled the technology-heavy Nasdaq lower. 1712

The market was therefore testing more than Nvidia’s reported revenue. Investors were also looking for forward guidance, evidence that AI infrastructure spending remained durable and signs that customers could continue supporting the sector’s lofty growth expectations. A strong outlook could ease concerns about the AI trade; disappointing guidance could extend the de-risking across chip and technology stocks. 1239

Washington added geopolitical and trade uncertainty

The United States announced a possible expansion of secondary sanctions aimed at entities and countries maintaining business ties with Iran. The measure increased uncertainty about international commerce and the potential economic consequences of a broader pressure campaign, even as markets later treated the announcement as less severe than initially feared. 127

The breakdown of U.S.–Canada trade negotiations created a second policy risk. Threats of higher tariffs on Canadian autos, trucks, auto parts and steel, together with possible retaliation, raised concerns for cross-border manufacturers and supply chains. 1015

These developments did not independently explain every market move, but they reinforced a defensive tone at a time when investors were already focused on expensive technology valuations, bond yields and the Federal Reserve’s next decision.

Monday’s market moves showed a concentrated sell-off

U.S. index performance made the sector concentration clear:

• The S&P 500 fell 0.28%.
• The Nasdaq Composite declined 0.76%.
• The Dow Jones Industrial Average rose 0.26%.

The Dow’s gain alongside declines in the S&P 500 and Nasdaq suggests that Monday’s pressure was not evenly spread across the market. Technology and semiconductor shares were the principal drag, while other parts of the market provided support. 117

In Europe, the pan-European STOXX 600 finished unchanged, another indication that the session was not a synchronized collapse across all major equity markets. 45

Asia was weaker on Monday, but Tuesday was mixed

Asian markets absorbed the technology sell-off more sharply on Monday. The Kospi fell about 3.1%, the Nikkei 225 lost 0.74% and India’s Sensex declined 0.22%. The Hang Seng dropped 1.89%, while the Shanghai Composite fell 0.6%. 2029

Tuesday’s trading did not simply repeat Monday’s pattern. An early market snapshot showed the Nikkei up 0.4%, the Kospi down 0.4%, the Hang Seng down 0.3%, the Shanghai Composite down 0.1%, the ASX 200 up 0.6% and India’s Sensex down 0.3%. 23

That mixed performance matters because it changes the interpretation of the two-day move. Investors remained cautious ahead of Nvidia’s results, but the evidence does not support describing Tuesday as a uniform global equity sell-off. Some markets stabilized or recovered as traders reassessed the sanctions announcement and awaited new information.

Oil fell even though high prices had been a background concern

Oil prices had climbed to one-month highs during the previous week as a diplomatic impasse in the Gulf raised concerns about supply and inflation. That backdrop mattered for interest-rate expectations and the cost outlook for companies and consumers. 19

However, crude was not the immediate cause of Monday’s decline. Oil fell by more than $2 a barrel on Monday as traders reassessed the implications of the Iran announcement. Market snapshots put crude near $82 a barrel after a fall of roughly 3%. 2344

The distinction is important: elevated oil prices contributed to the broader inflation anxiety, but falling oil prices on Monday provided some relief rather than adding directly to the equity sell-off.

Treasury yields eased, but not enough to offset tech weakness

Bond-market stress had been a major concern in the preceding period, with investors watching high Treasury yields because they can make future corporate earnings less valuable in present terms, particularly for long-duration growth companies. 1942

U.S. yields eased on Monday. The 10-year Treasury yield was around 4.66% in one market snapshot, while another report put the close near 4.70%. 342 Falling yields would normally offer support to technology valuations, but that support was outweighed by the sector-specific selling and the uncertainty surrounding Nvidia’s results.

Bitcoin traded near $79,000 in Monday snapshots, while gold was around $4,680–$4,700. On Tuesday, bitcoin moved above $80,000 in one Reuters market report, while gold eased. 325

The events that could determine the next move

Nvidia earnings

Nvidia’s Wednesday results were the central event for technology investors. Revenue expectations were around $92 billion, but the market reaction was likely to depend at least as much on guidance and commentary about AI demand as on the headline number. 1215

A strong outlook could revive semiconductor and technology shares. A revenue beat accompanied by cautious guidance, weaker margins or signs of slowing infrastructure spending could instead prolong the sector pullback.

PCE inflation and second-quarter GDP

The U.S. PCE inflation report and the second estimate of second-quarter GDP were scheduled for Wednesday. Together, they could influence expectations for the Federal Reserve’s September policy decision. 39

A firm inflation reading could keep yields elevated and make rate relief less likely. Strong growth combined with persistent inflation could produce a similar response. Conversely, softer inflation or weaker growth could reduce pressure on yields, although weak growth would introduce its own concerns about corporate earnings.

Kevin Warsh’s Jackson Hole speech

Federal Reserve Chair Kevin Warsh’s first major policy speech at Jackson Hole was scheduled for Friday. Investors were expected to look for clues about inflation, growth, balance-sheet policy and the threshold for further tightening. 23

The market’s sensitivity to the speech reflects uncertainty about whether September policy will bring a rate hike, a hold or a change in expectations. Higher yields and a more hawkish signal would be especially challenging for technology valuations; lower yields and a less restrictive outlook would be more supportive.

Bottom line

The Monday decline was primarily a technology-led repricing ahead of Nvidia’s results, amplified by uncertainty over Iran sanctions, U.S.–Canada trade tensions and monetary policy. High oil prices and earlier bond-market stress formed part of the risk backdrop, but oil and Treasury yields both eased during Monday’s session. 1217

Tuesday’s mixed trading showed that investors were cautious rather than uniformly abandoning risk. The next decisive market signal was likely to come from the combination of Nvidia’s guidance, the inflation and GDP data, and the Federal Reserve message from Jackson Hole.