S&P 500 and Nasdaq hit record highs

The S&P 500 and Nasdaq Composite ended at record highs on Wednesday, May 13, 2026, even as inflation data and rising Treasury yields weighed on much of the rest of Wall Street. Yahoo Finance reported the S&P 500 rose 0.6% and the Nasdaq climbed 1.2%, while the Dow Jones Industrial Average slipped 0.1%. (finance.yahoo.com) The rally was led by technology shares, especially semiconductors and the so-called Magnificent Seven group of megacap growth stocks, according to Yahoo Finance and Reuters reporting carried by other outlets. The Invesco QQQ Trust, the ETF that tracks the Nasdaq-100, closed at $714.71, up 1.06% on the day, according to historical market data. (finance.yahoo.com) The records mattered because they arrived with weak breadth. The Associated Press said a rebound in technology stocks led Wall Street to records “even though the majority of U.S. stocks fell,” a sign that gains were concentrated in a smaller group of companies rather than spread evenly across the market. (finance.yahoo.com) ### If the indexes hit records, why did the market still look narrow? The Associated Press said most U.S. stocks declined on May 13 even as headline indexes finished at new highs. That split reflects how market-cap-weighted indexes can keep rising when the largest companies outperform, even if many smaller constituents lag. (finance.yahoo.com) S&P Dow Jones Indices has separately highlighted concentration risk in recent research. In a report published in 2026, the index provider said the 10 largest companies in the S&P 500 represented almost 40% of the index by mid-2025, a level it said had not been seen since the mid-1960s. (apnews.com) ### Which stocks were doing the lifting? Yahoo Finance said semiconductors and most of the Magnificent Seven components drove Wednesday’s advance. Its live coverage also said the Roundhill Magnificent Seven ETF was up about 2% intraday and on track for its best day in four weeks. (apnews.com) Reuters reporting from May 8, cited by other outlets, described a similar pattern earlier in the month, with Nvidia, Micron Technology and Sandisk among the AI-linked stocks pushing the S&P 500 and Nasdaq to records. That does not by itself prove the exact same seven names accounted for most of Wednesday’s move, but it does show the market’s recent record-setting sessions have been repeatedly tied to a narrow group of AI and chip stocks. (spglobal.com) ### Why didn’t hot inflation stop the rally? April producer prices came in hotter than expected, Yahoo Finance reported, reinforcing expectations that the Federal Reserve would keep rates steady at its next meeting. (finance.yahoo.com) Reuters also said chip stocks and megacap technology shares rose even as the inflation data pushed Treasury yields higher. Kevin Warsh’s confirmation by the Senate as the next Fed chair added another policy development for investors to absorb. Yahoo Finance said Warsh was confirmed in a 54-45 vote on May 13 and would replace Jerome Powell when Powell’s term ends on Friday, May 15. (money.usnews.com) ### What does this mean for investors following QQQ and other index products? QQQ is designed to track the Nasdaq-100, which is dominated by large nonfinancial Nasdaq-listed companies, according to Invesco. When a handful of the biggest technology names rally, funds tied to that index can outperform even if the broader market is less uniform underneath. (finance.yahoo.com) S&P Dow Jones Indices said in its concentration research that market participants are considering whether current AI-fueled enthusiasm could leave valuations too optimistic. That is S&P DJI’s characterization, not a market outcome, but it shows the concentration debate has moved from trading desks into index-provider research. (finance.yahoo.com) ### What are traders watching next? President Donald Trump’s trip to China was also in focus on May 13. Yahoo Finance reported Trump was expected to discuss trade and artificial intelligence with Chinese President Xi Jinping, placing trade policy alongside inflation and Fed leadership in the next set of market catalysts. (invesco.com) May 15 is the next concrete date in that sequence. Jerome Powell’s term ends that Friday, according to Yahoo Finance, and investors were also looking for the next round of market data and any developments from Trump’s meetings in China. (finance.yahoo.com) (spglobal.com)