Nasdaq and S&P 500 Fall Amid Tech Sector Jitters; Investors Brace for Fed Chair Powell’s Speech

Web Editor

August 19, 2025

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Background on Key Figures and Institutions

The Nasdaq Composite and the S&P 500 experienced a decline on Tuesday, primarily due to tech stocks. Investors are preparing for remarks by Jerome Powell, the Federal Reserve Chair, on interest rate trajectory at an upcoming Jackson Hole conference. Powell’s comments will be closely watched for insights into the central bank’s economic outlook and monetary policy.

Market Performance

  • Nasdaq Composite: Fell 1.46% to 21,314.95 points following a drop in six of the “Seven Dwarfs” stocks, including NVIDIA which dropped 3.5%.
  • S&P 500: Decreased by 0.58% to 6,411.46 units; the Dow Jones remained nearly unchanged at 44,922.39 points.
  • Sector Leaders: Real estate, utilities, and consumer staples sectors led gains.

Reasons for the Decline

The Nasdaq fell due to losses in large-cap tech companies like NVIDIA, Microsoft, and Meta Platforms. Investors are positioning themselves cautiously ahead of the Fed’s annual Jackson Hole symposium (August 21-23) for any hints on the central bank’s economic perspective and monetary policy.

“It seems investors are taking some cover ahead of Jackson Hole, anticipating Powell might be more hawkish than markets currently perceive,” said James Cox, managing partner at Harris Financial Group.

Market futures suggest two 25-basis-point interest rate cuts this year, with the first expected in September. Steve Sosnick, chief strategist at Interactive Brokers, noted that “some investors are booking profits in tech stocks and rotating into other sectors. This shift impacts the overall market due to the significant weight of these tech stocks in major indices.”

Concerns Over AI Stocks

There’s also some apprehension regarding AI-related stocks after Sam Altman, CEO of OpenAI, mentioned in an interview with The Verge that the sector is in a bubble.

Mexican Markets Rise

BMV and Biva Gain Ground

Mexican stock exchanges maintained an upward trend at Tuesday’s closing, following a data-light day with anticipation of crucial economic indicators publication later in the week.

  • S&P/BMV IPC: Rose 0.25% to 58,462.79 points.
  • FTSE-BIVA: Increased by 0.28% to 1,171.99 units.
  • Market Context: Investors could consider the preliminary data indicating Mexico’s economy contracted in July, ending a four-month growth streak. Additional economic performance reviews and Banco de México minutes are expected later in the week.

Key Questions and Answers

  • Q: Why are tech stocks falling? A: Investors are cautious ahead of Fed Chair Powell’s speech, anticipating a more restrictive stance on interest rates.
  • Q: What are market futures suggesting about interest rate cuts? A: Two 25-basis-point interest rate reductions are expected this year, with the first anticipated in September.
  • Q: What concerns are affecting AI-related stocks? A: OpenAI CEO Sam Altman expressed concerns about a potential bubble in the AI sector.
  • Q: How are Mexican stock markets performing? A: Both the BMV IPC and FTSE-BIVA indices closed higher, supported by anticipation of upcoming economic data releases.