--- title: "Major Indexes Backpedal as Micron Drags Tech Sector" type: "News" locale: "en" url: "https://longbridge.com/en/news/286795512.md" description: "Major indexes fell as Micron Technology impacted the tech sector, with the Nasdaq down 128 points. President Trump threatened Iran over a peace deal, affecting market sentiment. Li Auto's stock dropped 10.1% after a poor response to its SUV update, while Roblox Corp rose 9.6%. MP Materials Corp fell 8.5%, marking its seventh drop in eight sessions, despite being up 11% year-to-date." datetime: "2026-05-18T15:47:22.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286795512.md) - [en](https://longbridge.com/en/news/286795512.md) - [zh-HK](https://longbridge.com/zh-HK/news/286795512.md) --- # Major Indexes Backpedal as Micron Drags Tech Sector Today's **early morning gains** were quickly shed as Micron Technology (MU) dragged the tech sector and investors continued to weigh the future of the U.S. and Iran. On Sunday, President Donald Trump said there "won't be anything left" if Iran didn't agree to a peace deal quickly. The Nasdaq Composite (IXIC) is off 128 points, while the Dow Jones Industrial Average (DJI) and S&P 500 Index (SPX) also sport notable losses. West Texas Intermediate (WTI) crude prices are resuming their climb higher, last seen trading above $105 per barrel, while the 10-year Treasury yield remained up 4.6%. - Energy merger talks send **NextEra stock sliding**. - **Analyst 'Buy' rating** triggers cloud stock surge. - Plus, auto giant sports hot options; some of the best and worst NYSE names today. **Li Auto Inc (NASDAQ:LI)** stock is down 10.1% to trade at $16.64, after the **EV auto maker** saw a lackluster response to its L9 SUV update announcement. Todays drop has the shares headed for their worst day since March 2025 and back below the year-to-date breakeven mark. Options traders have been flooding in, with 11,000 calls and 5,742 puts across the tape, six times the average daily pace. The January 2027 25-strike call is seeing the most attention, with selling activity detected. **Roblox Corp (NYSE:RBLX)** is one of the top stocks on the New York Stock Exchange (NYSE) today, last seen up 9.6% to trade at $46.96, extending its recent bounce off the $40 level, though a catalyst remains unclear. RBLX remains near its late-2024 lows, off 41% year-to-date, with added **long-term pressure** stemming from the descending 50-day moving average. Precious metals giant **MP Materials Corp (NYSE:MP)** is near the bottom of the NYSE, last seen down 8.5% to trade at $56.07. MP is headed for its seventh daily drop in eight sessions, pulling back after tapping a multi-month peak just shy of $80 on May 8. However, the **rare earths name** remains 11% higher year-to-date and significantly above its annual lows near $18. ### Related Stocks - [LI.US](https://longbridge.com/en/quote/LI.US.md) - [MP.US](https://longbridge.com/en/quote/MP.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [RBLX.US](https://longbridge.com/en/quote/RBLX.US.md) - [MUU.US](https://longbridge.com/en/quote/MUU.US.md) - [MULL.US](https://longbridge.com/en/quote/MULL.US.md) - [SOXX.US](https://longbridge.com/en/quote/SOXX.US.md) - [FTXL.US](https://longbridge.com/en/quote/FTXL.US.md) - [RBLU.US](https://longbridge.com/en/quote/RBLU.US.md) - [SOXQ.US](https://longbridge.com/en/quote/SOXQ.US.md) - [IXN.US](https://longbridge.com/en/quote/IXN.US.md) - [SOXL.US](https://longbridge.com/en/quote/SOXL.US.md) - [PSI.US](https://longbridge.com/en/quote/PSI.US.md) - [XSD.US](https://longbridge.com/en/quote/XSD.US.md) - [SMH.US](https://longbridge.com/en/quote/SMH.US.md) - [.IXIC.US](https://longbridge.com/en/quote/.IXIC.US.md) - [.DJI.US](https://longbridge.com/en/quote/.DJI.US.md) - [.SPX.US](https://longbridge.com/en/quote/.SPX.US.md) - [NEE.US](https://longbridge.com/en/quote/NEE.US.md) - [02015.HK](https://longbridge.com/en/quote/02015.HK.md) - [NEE-N.US](https://longbridge.com/en/quote/NEE-N.US.md) - [NEE-W.US](https://longbridge.com/en/quote/NEE-W.US.md) - [NEP.US](https://longbridge.com/en/quote/NEP.US.md) - [NEE-R.US](https://longbridge.com/en/quote/NEE-R.US.md) - [NEE-T.US](https://longbridge.com/en/quote/NEE-T.US.md) - [NEE-U.US](https://longbridge.com/en/quote/NEE-U.US.md) - [NEE-S.US](https://longbridge.com/en/quote/NEE-S.US.md) - [NEE-V.US](https://longbridge.com/en/quote/NEE-V.US.md) ## Related News & Research - [Is Micron Stock Expensive at $725? Here's the Math on Why Shares Are Still Dirt Cheap.](https://longbridge.com/en/news/286878649.md) - [Micron Technology, Inc. $MU Shares Purchased by Legacy Financial Advisors Inc.](https://longbridge.com/en/news/286243863.md) - [Integral Investment Advisors Inc. Buys New Position in Micron Technology, Inc. $MU](https://longbridge.com/en/news/286894765.md) - [Why Micron stock just dropped](https://longbridge.com/en/news/286126218.md) - [WealthPlan Investment Management LLC Invests $1.29 Million in Micron Technology, Inc. $MU](https://longbridge.com/en/news/286762040.md)