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MARKET BRIEFING · US

The Dow finished almost flat, yet the companies building data centers on borrowed money fell by double digits.

October 14, 2026 · Read the Korean original

Major indices

  • Dow 51,621.48 -0.09%
  • S&P 500 7,718.94 -1.11%
  • Nasdaq 26,692.87 -1.88%

What dragged the US market down overnight was inflation, not earnings. September consumer prices rose 3.7% from a year earlier, above the 3.6% economists expected, and gained 0.6% from August, the largest monthly increase in five months. Core prices excluding food and energy rose 0.3% on the month, also above the 0.2% forecast. CNBC reported that the 10-year Treasury yield jumped 10 basis points to the 5.32% area, its highest since October 8, and Reuters reported that CME FedWatch odds of another hike this month climbed to 37% from 22% the day before. The Fed, which raised rates last month for the first time in three years, next decides on October 28.

The damage was uneven across the indexes. The Dow slipped 0.09% and was effectively unchanged, while the S&P 500 fell 1.11% and the Nasdaq 1.88%. That was the Nasdaq's steepest one-day decline since July 23, and within the S&P 500 the technology sector alone lost 3%. The rate-sensitive Russell 2000 small-cap index fell more than 1.9% for the same reason.

At the center of the selling were not chipmakers but the companies financing data centers with debt, because higher rates feed straight into their cost of capital. Yields on CoreWeave's 2032 notes pushed toward 15% and the unease spread across the group: according to CNN and Reuters, Oracle, Dell, Nebius and IREN fell between 7% and 15%, while the cost of insuring Oracle's and CoreWeave's debt hit record highs. Chip stocks fell less, by 3% to 6%, and Apple rose against the tide to close above a $5 trillion market value for the first time.

Korea's session today may split in two directions rather than simply follow the overnight move. Semiconductors face weak US peers again after five straight days of sharp losses and worries about Chinese memory makers catching up, but ASML's third-quarter sales of 11.7 billion euros and raised fourth-quarter guidance, with management describing demand from AI logic and memory customers as robust, can act as a cushion. For power infrastructure, the rising cost of financing US data centers is worth watching, as it can push order expectations further out.

The confirmed facts here are the September inflation rate, Treasury yields, the index moves and ASML's reported results. The reading that debt raised for AI investment cannot withstand higher rates belongs to the press and market participants, and the Federal Reserve's Beige Book, due tonight Korea time, will test that reading again.

Korean industries to watch today

  • Semiconductors · Weak US chip stocks pull one way, ASML's robust demand comments the other
  • Power infrastructure · Costlier financing for AI data centers may delay order expectations

Watchlist stocks in the news

  • NVIDIA (NVDA) Close -3.16% · Led the sector lower as hotter-than-expected inflation lifted yields and profit-taking in AI chips continued. (Yahoo Finance)
  • AMD (AMD) · Fell more than most chip names as a high-multiple AI chipmaker seen as sensitive to rising rates. (Yahoo Finance)
  • Broadcom (AVGO) · Swept up in the chip selloff while doubts about the durability of AI spending lingered. (Yahoo Finance)
  • Micron (MU) Close -4.08% · Dropped more than peers as worries about Chinese memory makers' DRAM progress compounded rising yields. (Yahoo Finance)
  • TSMC (TSM) · Declined with the broad chip selloff, without a company-specific catalyst. (Yahoo Finance)
  • ASML (ASML) · Traded lower during the session as investors gave a mixed read on its third-quarter sales. (CNBC)
  • CoreWeave (CRWV) · Slid as yields on its 2032 notes pushed toward 15%, spreading concern about its data center debt load. (CNBC)
  • Nebius (NBIS) · Fell sharply among AI infrastructure names as investors flagged the funding needed for its data center buildout. (Reuters via U.S. News)
  • IREN (IREN) · Dropped with other neocloud operators as worries about higher funding costs spread across the group. (GuruFocus)
  • Oracle (ORCL) · Fell as the cost of insuring its debt hit a record high, with investors treating it as a heavily indebted AI spender. (Reuters via U.S. News)
  • Dell (DELL) · Lost double digits after a Barclays downgrade combined with concern about slowing enterprise AI spending. (CNBC)
  • Apple (AAPL) Close +0.50% · Rose against a falling tech market to close above a $5 trillion market value for the first time. (The Apple Post)

Sources (Korean-language)

This market briefing was compiled by AI from this site's own price and filing data together with public news reports, and translated from the Korean original. Please check the sources below before relying on it.

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