Stock Markets May 26, 2026 07:30 AM

Semiconductor Stocks Jump in Premarket Trade as Peace-Track Signs Lift Sentiment

Memory and AI-infrastructure names lead gains after apparent progress in U.S.-Iran talks; UBS lifts Micron target and raises S&P 500 outlook

By Leila Farooq MU MRVL WDC QCOM AMD

U.S. semiconductor shares rallied in premarket trading, led by memory and AI-infrastructure companies. Micron Technology was the biggest mover after UBS more than tripled its price target to $1,625, citing new long-term supply agreements. Broader optimism followed advances in peace discussions between the U.S. and Iran and earlier strength in Hong Kong and South Korea among AI-related stocks.

Semiconductor Stocks Jump in Premarket Trade as Peace-Track Signs Lift Sentiment
MU MRVL WDC QCOM AMD

Key Points

  • U.S. semiconductor shares broadly rose in premarket trade, led by memory and AI-infrastructure companies.
  • Micron Technology jumped after UBS more than tripled its price target to $1,625, citing long-term supply agreements that will change its earnings profile; UBS also raised its S&P 500 year-end target to 7,900, citing strong demand for data center infrastructure.
  • Developments in the Middle East, including the continued closure of the Strait of Hormuz and tentative progress in U.S.-Iran talks, are key factors influencing market sentiment across technology and broader markets.

U.S. semiconductor equities saw broad gains in premarket trading on Tuesday, with memory and artificial-intelligence infrastructure names leading the uptick as investor sentiment improved amid apparent progress in U.S.-Iran peace discussions.

The advance followed earlier strength in Hong Kong and South Korea among companies tied to the AI theme.

Micron Technology stood out as the session's top mover, rising 6% in premarket activity after UBS more than tripled its price target on the stock to $1,625. UBS said the emergence of long-term supply agreements will "structurally transform" Micron's earnings profile.

Other notable premarket moves included Marvell Technology, up 5%; Sandisk, which added 3.1%; Qualcomm, rising 2.4%; Advanced Micro Devices, up 2.7%; and Arm Holdings, which gained 1.7%. Nvidia, frequently viewed as the bellwether for the AI-chip trade, increased 1.2%.

Separately, UBS raised its S&P 500 year-end price target to 7,900, pointing to "seemingly insatiable demand for data center infrastructure" as a primary factor driving upward earnings revisions.

Market participants said the moves come as attention remains focused on developments in the Middle East. The ongoing closure of the Strait of Hormuz in recent months has introduced heightened uncertainty across markets, and investors have been watching for signs that the situation might ease.

Premarket relief in sentiment followed reports of apparent progress in U.S.-Iran peace talks, but traders continued to express caution given the fragile nature of the situation.


Market context

  • Premarket gains were concentrated in memory and AI infrastructure-related stocks.
  • Micron's jump was tied to UBS's reassessment of its long-term earnings potential based on supply agreements.
  • The broader market view was supported by UBS's higher S&P 500 year-end target, driven by strong demand for data center capacity.

Movers mentioned

  • Micron Technology (MU) - +6% premarket
  • Marvell Technology (MRVL) - +5%
  • Sandisk (WDC) - +3.1%
  • Qualcomm (QCOM) - +2.4%
  • Advanced Micro Devices (AMD) - +2.7%
  • Arm Holdings (ARM) - +1.7%
  • Nvidia (NVDA) - +1.2%

Risks

  • The ongoing closure of the Strait of Hormuz has added significant uncertainty to markets, potentially affecting energy and shipping-sensitive sectors.
  • The apparent progress in U.S.-Iran peace talks is fragile, meaning positive sentiment could reverse if negotiations falter.
  • Investors remain cautious despite premarket relief, so momentum in semiconductor and data-center related stocks may be sensitive to geopolitical headlines.

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