Key Highlights

● AI-related import costs rose the most since 1987, according to a published headline.

● Overall import prices also rose more than economists expected for September.

● CoreWeave plunged amid attention on its debt load of more than $50 billion.

● The PHLX Semiconductor Index fell with all 30 members lower.

A record-setting jump

Friday's September import price report carried a striking detail. AI-related import costs rose the most since 1987, according to a published headline. Overall import prices also rose more than economists expected for the month and were up sharply from a year earlier.

The finding links two of the market's biggest stories: the enormous build-out of AI infrastructure and the stubborn inflation that has kept the Federal Reserve on alert. It arrived on a day when AI stocks were already under heavy pressure.

Why AI shows up in trade data

The US imports a large share of the hardware used in AI data centers, including servers, chips, memory and networking gear, much of it made in Asia. TSMC (NYSE:TSM), the Taiwanese contract chipmaker whose shares trade in the US as ADRs, reported third-quarter revenue of $46.72 billion, above guidance, and kept its 2026 capital spending plan at $60 billion to $64 billion. Taiwan reportedly plans US industrial parks, starting with a Texas complex of up to $4 billion.

Demand signals remain strong. Nvidia (NASDAQ:NVDA) CEO Jensen Huang said AI chip orders keep growing, and earlier in the week AMI said it would order 20,000 of Nvidia's Rubin GPUs. Bank of America's chip analysts argued that deployed AI infrastructure runs close to full utilization.

Bankers see it too. Citizens Financial (NYSE:CFG) CEO Bruce Van Saun said, "This whole AI ecosystem build-out is kind of full-on. It's a very strong dynamic," and "Even with higher rates, the kind of desire to get the compute power in place, the players aren't really batting an eyelash."

Costs meet a financing scare

Rising costs arrived as investors grew more skeptical about how the build-out will be paid for. Market commentary described a shift from what AI can do to how it will be financed. CoreWeave (NASDAQ:CRWV) plunged to $61.39 amid attention on its debt load of more than $50 billion. Super Micro Computer (NASDAQ:SMCI), which assembles AI servers, fell sharply to $31.63, and Hewlett Packard Enterprise (NYSE:HPE) also fell.

The PHLX Semiconductor Index fell to 11,137.29, with all 30 members lower. The Nasdaq Composite sank 572.99 points to 26,140.03, its worst week since the week ended June 26, and the S&P 500 fell 84.62 points to 7,659.44.

The inflation angle

Higher import costs add to an already hot week of price data. September CPI showed annual inflation accelerating and topping expectations, according to a weekly market summary, and producer prices posted their largest monthly jump since March 2022. Export prices also beat forecasts.

The Federal Reserve hiked by a quarter point in September, its first increase in three years. Fed Chair Kevin Warsh told an IMF gathering in Bangkok, "I don't prejudge meetings." Odds of an October hike fell to about one in six in futures pricing by Friday, though markets still price a hike by December.

Hardware Reports Test Import Costs

The Fed decides Oct 28, and PCE inflation and third-quarter GDP arrive Oct 29. Hardware-heavy earnings next week will offer more detail on costs: Lam Research (NASDAQ:LRCX) and Texas Instruments (NASDAQ:TXN) report Oct 21, and Western Digital (NASDAQ:WDC) reports Oct 22.