--- title: "S&P 500 heads for the first July decline since 2014. Here are the stocks that led the selloff." type: "News" locale: "en" url: "https://longbridge.com/en/news/294539262.md" description: "The S&P 500 is heading for its first July decline since 2014, driven by a severe selloff in semiconductor stocks. The iShares Semiconductor ETF SOXX fell 20.7%, marking its worst month since 2002. Key losers included Micron Technology and Sandisk, while Microsoft was a notable gainer. Despite the monthly drop, many tech stocks remain up significantly for 2026." datetime: "2026-07-31T16:38:26.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/294539262.md) - [en](https://longbridge.com/en/news/294539262.md) - [zh-HK](https://longbridge.com/zh-HK/news/294539262.md) generator: "portal-rs" --- # S&P 500 heads for the first July decline since 2014. Here are the stocks that led the selloff. By Philip van Doorn After a whipsaw end to the month, the stock market's decline was highlighted by the worst month for chip stocks in 24 years These four technology stocks were all down 20% or more during July, but all were still up by triple digits for 2026. After a whipsaw end to the month, with a blowout earnings report from Microsoft followed by a bummer of a report from Apple, a painful decline for semiconductor stocks highlighted a tough July for the stock market. Even with a 10% surge in the last two days of the month, the iShares Semiconductor ETF SOXX, which holds stocks of 30 chip makers and associated companies, was down 20.7% for July as of late morning trading Friday. If that decline were to hold, it would be the worst month for SOXX since it tumbled 23.3% in December 2002, according to FactSet data. But the ETF was still up 68.9% for 2026, according to data provided by LSEG. Meanwhile, the iShares Expanded Tech-Software Sector ETF IGV was up 3% for July, mainly on the strength of Microsoft's stock (MSFT), which ran up 22.5 this month, but was still down 5.5% for 2026. And the broader technology sector, as tracked by the State Street Select Sector SPDR ETF XLK has dropped 8.9% in July, made worse by the 9.5% selloff in Apple's stock (AAPL) on Friday. Memory-chip maker Micron Technology's stock (MU) punctuated the seesaw end to the month. It soared 18.4% on Thursday but was down 5.5% in late morning trading on Friday and down 28.4% for the month. With all the noise, the S&P 500 index SPX was heading for a 0.8% decline this month, which would mark the first time it had a down July since 2014. The index had declined 1.1% in June. Below are lists of the worst and best performers among the S&P 500 for July, through late Friday morning. The S&P 500's biggest losers and winners for July Because of the dramatic decline for semiconductor stocks during most of July, we will first list the S&P 500's largest decliners for the month. Then, we'll list the biggest winners for the month among components of the index. Here are the largest 20 decliners among the S&P 500 during July as of late Friday morning. Sandisk (SNDK) has been the worst performer among the S&P 500 in July, with a decline of 46%, but it remains the best performer for 2026 with a gain of 415%. Among the stocks on this list of July's worst performers, Marvell Technology (MRVL), Intel (INTC) and Micron are also still showing triple-digit gains for the year. Here are the S&P 500's biggest gainers for July: Click on the tickers for more about each company. Take a breath: Get ready to buy the dip in tech stocks. Why the recent selling won't break the bull market. -Philip van Doorn This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal. 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