• Shares of Arm Holdings fell by 16%, causing worries that the expected returns from heavy investments in AI computing by major companies would take longer to materialize than previously anticipated.
  • The PHLX semiconductor index tumbled by 7.1%, marking its worst one-day percentage decline since March 2020, when the coronavirus pandemic caused global markets to plummet.

OUR TAKE
The conservative forecast from Arm Holdings led to a 16% drop in its shares, which raised concerns that the expected returns from large investments in AI by major companies like Microsoft, Alphabet, Amazon, and Meta Platforms would take longer to materialise than previously thought, which shows how influential a single company’s outlook can be on the entire market.
-Lia XU, BTW reporter

What happened

Arm Holdings, a British chip designer, released a conservative forecast that caused its shares to drop by 16%, which led to a significant decline in U.S. chip stocks, marking their worst day since 2020. The forecast from Arm Holdings raised worries among investors that the returns from heavy investments in AI computing by major companies like Microsoft, Alphabet, Amazon, and Meta Platforms would take longer to materialise than previously expected.

“Arm is responsible for a lot of the impact on semiconductors today after their guidance, but perhaps not as important as we made it this year in terms of valuation,” said Art Hogan, chief market strategist at B. Riley Wealth.

The losses in chipmakers’ shares and the broader market accelerated after various data points suggested that the economy might be slowing down faster than expected, even as the Federal Reserve continues its restrictive monetary policy.

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Why it’s important

According to data, the PHLX semiconductor index tumbled by 7.1%, marking its worst one-day percentage decline since March 2020, when the coronavirus pandemic caused global markets to plummet, showing the sensitivity of the market to economic and company-specific news. The S&P 500 index dropped by 1.4%, and the Nasdaq fell by 2.3%, leaving it almost 8% down from its record high close on July 10, indicating a broader market impact beyond just the semiconductor sector.

The chip index remains up by 16% in 2024, but the recent events have made many investors uneasy about putting more money into stocks, especially with valuations skyrocketing. It indicates that the market has a cautious sentiment about this.

It becomes clear how a single company’s forecast can have a ripple effect on the entire market, especially in sectors as interconnected as semiconductors and AI.