# Wall Street Tech Sell-off Triggers Global Market Downturn Rising bond yields and AI sector concerns drive the worst weekly performance since June. - **Source:** [Sydney Morning Herald - Business](https://www.smh.com.au/rss/business.xml) - **Published:** 2026-10-18 - **Topic:** [Finance](https://brifing.si/c/finance) - **Original article:** - **On Brifing:** https://brifing.si/s/7a0d7447-27fa-457c-bc98-40c7eb0f86e3 ## Tech Sector Leads Decline Wall Street experienced its worst week since late June as a broad sell-off hit technology stocks. The Nasdaq composite sank 2.1 percent, marking its first weekly loss in five weeks. Within the S&P 500, 68 out of 75 technology stocks closed lower, signaling a significant shift in investor sentiment toward the sector. ## Chipmakers Face Growing Pressure Semiconductor companies saw sharp declines as investors questioned the sustainability of the AI infrastructure buildout. Micron Technology dropped 5.6 percent, while Advanced Micro Devices fell 6 percent. Broadcom and Intel also suffered, losing 4.5 percent and 5.8 percent respectively, reflecting mounting anxiety over the long-term profitability of heavy capital expenditures. ## Bond Yields and Debt Concerns Investors are increasingly worried that tech firms relying on debt markets to finance AI investments may struggle as global bond yields climb. The 10-year Treasury yield, which recently touched its highest level since 2002 at over 5.30 percent, currently sits at 5.09 percent, complicating the borrowing landscape for capital-intensive technology corporations. ## Federal Reserve Policy Outlook Market expectations for a Federal Reserve interest rate hike in December have jumped to 74.3 percent, up from 50.2 percent a month ago. Despite recent consumer and wholesale inflation reports exceeding economist forecasts, Fed Chairman Kevin Warsh provided no fresh signals regarding potential policy shifts during his recent meeting in Bangkok. ## Energy Sector Resilience Energy stocks outperformed the broader market, with Exxon rising 2.5 percent and Chevron adding 2.6 percent. Brent crude prices jumped 3.7 percent to settle at $109.86 per barrel. Global supply pressures remain elevated due to the ongoing conflict in the Middle East, maintaining a significant risk premium on international oil standards. ## Corporate Shifts and Performance Netflix shares fell 2.9 percent following the announcement that Chief Content Officer Bela Bajaria will replace Peter Rice. This leadership change coincides with the company’s plan to lay off approximately 6 percent of its workforce, totaling nearly 1,000 positions, as it navigates a challenging environment for major streaming and technology platforms. ## Australian Market Implications The Australian sharemarket is expected to open lower, with futures pointing to a loss of 11 points or 0.1 percent. The Australian dollar was trading at US69.57 cents. Local investors are monitoring these global trends closely, as the tech-heavy sell-off on Wall Street typically influences sentiment across the Australian equity landscape. ## Market Outlook and Volatility Despite high inflation and geopolitical uncertainties, U.S. stocks have managed to set records this season due to strong profit growth expectations. However, the current volatility in chipmakers and the shifting interest rate environment suggest that investors are becoming more cautious, prioritizing companies that demonstrate robust earnings performance over speculative growth projects. ## Sources covering this story - https://www.smh.com.au/business/markets/asx-set-to-dip-tech-stocks-weigh-on-wall-street-20261019-p616jx.html?ref=rss&utm_medium=rss&utm_source=rss_business — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._