Key Highlights

  • Nvidia (NASDAQ:NVDA) rose 2.1 percent to a record USD 238.90 on October 5, 2026, its first record close since May, with market value near USD 6 trillion, in published market data.
  • Teradyne gained 8.0 percent and Hewlett Packard Enterprise 7.4 percent, while Broadcom rose 2.1 percent; no company-specific announcement explaining the Teradyne or HPE moves was found.
  • Foxconn reported third-quarter revenue of NT dollar 3.0327 trillion, up 47 percent, and September revenue of NT dollar 1.159 trillion, up 38 percent, on AI server demand, lifting Nvidia (NASDAQ:NVDA) sentiment.
  • Western Digital and Seagate fell about 10.2 percent on a Toshiba capacity expansion, and Intel fell about 2.6 percent to 3.3 percent on a report involving TSMC, so the rally was selective.

Who Moved and by How Much

On October 5, 2026 the Nasdaq Composite closed at a record 27,477.31, up 1.05 percent. Nvidia (NASDAQ:NVDA) led large caps with a 2.1 percent gain to USD 238.90, according to published market data. Broadcom (NASDAQ:AVGO) rose 2.1 percent. Teradyne (NASDAQ:TER) jumped 8.0 percent. Hewlett Packard Enterprise (NYSE:HPE) gained 7.4 percent. HPE had already risen 22.3 percent in September after fiscal third-quarter revenue of USD 12.2 billion, up 34 percent, a fourth-quarter revenue forecast of USD 13.9 billion to USD 14.8 billion and a USD 1.2 billion AI rack order. HPE also announced a 2027 Ryder Cup supplier role on October 5, which is unlikely to explain the move.

The Common Thread

The linking factor is AI data center spending flowing through different layers: processors, networking, servers and the equipment that tests chips. Foxconn, a key Nvidia server assembler, reported September revenue above NT dollar 1 trillion for the first time and a third-quarter total about NT dollar 200 billion above the roughly NT dollar 2.83 trillion analyst estimate. Cloud and networking products exceeded half of its second-quarter revenue. Teradyne is described as an Nvidia testing partner, and BNP Paribas analyst Karl Ackerman raised his Nvidia target to USD 345. Analysts also noted memory pricing holding up better than expected, while Taiwan stocks closed at a record on October 6.

Risks and What to Watch

Baskets can reverse together. Foxconn itself said it remains cautious because of volatile global political and economic conditions, and its full results come November 12. The 10-year Treasury yield near 5.31 percent pressures high-multiple technology, and an August Taiwan indictment and a reported USD 300 million server smuggling scheme underline export-control risk for Nvidia (NASDAQ:NVDA), though the company calls smuggling a losing proposition. The storage selloff and Intel decline show investors discriminating by supply and competition, not buying everything AI. Watch Fed minutes on October 7, Taiwan monthly sales, chip earnings later in October and any further export-control actions. Broadcom has also drawn debate over custom-chip competition.

Where Things Stand

Nvidia (NASDAQ:NVDA), Broadcom, Teradyne and HPE rose together because investors are reading Foxconn's strong AI server revenue as proof that spending continues across chips, networking, servers and test equipment. The gains are not tied to a company announcement that was found, so the cause is inference. With the 10-year near 5.31 percent and storage and Intel falling, the rally is selective and could reverse. This is not investment advice.