U.S. chipmakers led Wall Street lower on Tuesday in the sector's worst session since early June, as hawkish Federal Reserve signals and mounting skepticism about the near-term payoff from massive AI infrastructure spending combined to spark a broad-based semiconductor selloff. The Philadelphia Semiconductor Index (SOX) dropped more than 3%, dragging the Nasdaq Composite down over 2% while the S&P 500 shed 1.4%.
What Happened
Nvidia fell 5.6%, Intel slid 6.8%, Micron dropped over 10%, and AMD and Broadcom each lost more than 6% as traders priced in a higher-for-longer interest rate trajectory following stronger-than-expected U.S. jobs data. The selloff wiped out more than $300 billion in combined market value across the semiconductor sector in a single session, according to Reuters calculations.
The Financial Times reported that "chip stocks and memory makers led a sell-off on Wall Street on Tuesday as fears of rising U.S. interest rates and the scale of Big Tech's AI spending unnerved investors." The move came after Friday's nonfarm payrolls report showed the U.S. economy added 272,000 jobs in May, well above the 185,000 forecast, reinforcing concerns that the Federal Reserve may keep rates elevated longer than markets had hoped. The semiconductor industry saw its sharpest single-day decline since early June.
Why It Matters
Semiconductor stocks have been the primary beneficiaries of the AI investment boom, with the SOX index more than doubling since late 2022. But the sector's high valuations and sensitivity to interest rates make it vulnerable when macroeconomic conditions shift. Higher rates increase the discount rate applied to future cash flows, disproportionately hitting growth-oriented chip stocks whose valuations depend on earnings years into the future.
Analysts at Kavout noted the selloff was "attributed to macroeconomic headwinds rather than fundamental deterioration," with AI demand remaining robust. However, Broadcom's recent cautious outlook on AI revenue growth has added to concerns that the near-term revenue ramp may not justify current multiples. The broader tech selloff has also rippled into memory chip demand expectations.
What's Next
Investors will watch this week's CPI and PPI inflation data for clues on the Fed's next move. A hotter-than-expected print could extend the selloff, while signs of cooling price pressures may allow chip stocks to stabilize. Earnings from Micron later this week will provide a real-time gauge of memory market demand and pricing trends. Meanwhile, Asian markets showed resilience and geopolitical risks continue to influence sentiment alongside emerging tech policy.