# 標普500、納斯達克期貨因AI行情持續上漲；油價因美伊談判希望下跌逾5%。

*semiconductor, business · news · 2026-05-27 · CNBC TV18*

## Key points

- 美光科技市值首次突破1兆美元。
- 報導指出伊朗可能重新開放霍爾木茲海峽後，油價暴跌逾5%。
- SK海力士也因AI晶片行情推動，市值突破1兆美元大關。
- 瑞銀預測，隨著記憶體供應商取得AI相關合約，美光股價可能翻倍以上。

S&P 500, Nasdaq futures rise as AI rally continues; oil falls over 5% on US-Iran talk hopes Futures tied to the S&P 500 and Nasdaq rose on Wednesday as investor optimism around AI-driven chip stocks continued to support technology shares. Meanwhile, oil prices fell sharply amid reports of possible progress in US-Iran negotiations and easing concerns over disruptions in the Strait of Hormuz. By Megha Rani US stock index futures advanced on Wednesday, May 27, extending a technology-led rally that pushed the S&P 500 and Nasdaq Composite to record highs in the previous session, while oil prices declined sharply amid optimism over potential progress in US-Iran negotiations. Futures tied to the S&P 500 rose 0.3%, while Nasdaq 100 futures gained 0.8%, supported by continued strength in artificial intelligence-linked chip stocks. Futures linked to the Dow Jones Industrial Average traded largely flat. Investor sentiment remained buoyed by hopes that Washington and Tehran could move closer to a longer-term agreement, easing concerns around supply disruptions and geopolitical tensions in West Asia. However, uncertainty around the timeline for a formal agreement persisted after US Secretary of State Marco Rubio cautioned that finalising any deal could still take several days. Oil prices fell sharply following reports that Iran could restore commercial traffic through the Strait of Hormuz under a potential framework agreement with the United States. US West Texas Intermediate crude futures dropped 5.7% to $88.53 per barrel, while Brent crude futures declined 4.7% to $94.91. Technology and semiconductor stocks continued to lead gains amid the ongoing AI-driven market rally. Shares of Micron Technology rose 8% in premarket trading after surging 19% in the previous session, pushing the company’s market capitalisation above $1 trillion for the first time. The rally in memory chipmakers also lifted South Korean peer SK Hynix, which crossed the $1 trillion market value milestone overnight. Micron’s stock has more than tripled this year, aided by expectations of sustained AI-related demand. The latest gains came after UBS said the stock could potentially more than double further as memory suppliers sign long-term agreements to support AI infrastructure deployment. Investors are also awaiting quarterly earnings from companies including Marvell Technology, Salesforce, Snowflake and Abercrombie & Fitch later in the day. (Edited by : Ajay Vaishnav )

**Companies:** Micron Technology, SK Hynix, Marvell Technology, Salesforce, Snowflake, Abercrombie & Fitch
**Countries:** United States, Iran, South Korea

[Read the full story on CNBC TV18](https://www.cnbctv18.com/market/sp500-nasdaq-dow-jones-futures-ai-rally-crude-oil-us-iran-talks-ws-el-19914693.htm)

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