MONEY RADAR
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MARKET BRIEFING · US

Inflation data ran hotter, yet falling Treasury yields split the market: the Dow to a one-month high, the Nasdaq to a standstill.

October 15, 2026 · Read the Korean original

Major indices

  • Dow 52,177.69 +1.08%
  • S&P 500 7,744.06 +0.33%
  • Nasdaq 26,713.03 +0.08%

What moved the US market overnight was the gap between inflation data and interest rates. September producer prices, released by the Bureau of Labor Statistics on the 15th, rose 6.3% from a year earlier, far above the low-5% range the market had expected, with energy items including gasoline accounting for most of the increase. Even so, the 10-year Treasury yield fell nearly 12 basis points to around 5.07%, its lowest level since September 25. CNBC and economies.com attribute that to remarks from Fed officials that led traders to scale back the odds of another October hike; futures markets now put the chance of a hold in October at 68%, up from 46%. The dollar retreated from an 18-month high, while WTI crude settled 3.03% higher at $97.97 a barrel on Middle East supply risk.

The indexes rebounded, but the session looked more like a rotation. The Dow rose 1.08% to 52,177.69, its highest level in a month, while the Nasdaq Composite managed only 0.08% and the S&P 500 added 0.33%. Given that the Nasdaq opened down more than 1% and erased that loss as yields fell, this is better read as a day when the rate burden eased by one step than as a day when the AI-spending anxiety of the previous sessions was resolved.

The dividing line between sectors was whether a company is building data centers with borrowed money. CoreWeave (CRWV, neocloud) swung more than 15% intraday as its bond yields topped 15% and its credit-default-swap premium widened to a record 1,194 basis points, then turned higher after NVIDIA chief executive Jensen Huang said in Stockholm that CoreWeave's cost of capital is in fact falling and that NVIDIA does not need to backstop it (Benzinga). Peers such as Nebius (NBIS) and Applied Digital (APLD), along with Vertiv (VRT, data-center power and cooling), stayed weak. Money rotated instead into cloud software and household staples with lighter capital-spending needs: Intuit (INTU, tax and accounting software) rose 6% after announcing a deal for Sequence, and Kimberly-Clark (KMB, household products) gained close to 4% on preliminary results.

Memory spent another day under competitive pressure from China. ChangXin Memory's claim that it will launch a denser server DRAM chip this year spread into doubt about pricing for high-end products, pushing Western Digital (WDC, hard-drive storage) and Sandisk (SNDK, NAND flash memory) down 3% to 5% intraday and the Roundhill Memory ETF (DRAM, memory-chip ETF) down 3%, according to 24/7 Wall St. Micron (MU, DRAM and HBM memory), however, reversed its intraday loss and turned higher. On the same day TSMC (TSM, foundry) posted a sixth straight record quarter, with third-quarter net income of NT$763.06 billion, up 68.7% from a year earlier, and chief executive C.C. Wei describing AI demand as still extremely robust, yet the shares fell more than 2% as analysts pointed to fourth-quarter margin pressure from the 2-nanometer transition.

Today's Korean session opens with those conflicting signals arriving together. Because yesterday's sharp KOSPI drop traced back to US inflation and AI-spending worries, the fall in yields and TSMC's confirmation of demand could give semiconductors room to breathe, but with CXMT's server-DRAM claim still unresolved, memory names are likely to open with mixed signals. The fact that doubts about data-center financing hit US power and cooling equipment names first could weigh on power infrastructure, and crude's gain of more than 3% is worth watching on the input-cost side for chemicals and refining.

The confirmed facts are the September PPI figures, TSMC's results and the moves in the three indexes. Pinning the drop in yields on Fed officials' remarks, and CoreWeave's rebound on Huang's comments, are press interpretations; the Philadelphia Semiconductor Index is left out because its close could not be confirmed at the same value.

Korean industries to watch today

  • Semiconductors · Falling yields and TSMC's record quarter help, while CXMT's server-DRAM push weighs.
  • Power infrastructure · Data-center financing doubts hit US power and cooling equipment names first.
  • Chemicals & refining · WTI rose more than 3%, so input-cost pressure is worth watching.

Watchlist stocks in the news

  • CoreWeave (CRWV) · Slumped as its bond yields and credit-default swaps spiked, then turned higher after NVIDIA's chief executive said its cost of capital is falling. (Benzinga)
  • Nebius (NBIS) · Fell with its neocloud peers as worries spread about the funding costs behind debt-financed data centers. (CNBC)
  • Applied Digital (APLD) · Dropped as AI colocation names leasing data-center space were caught in the same financing doubts. (Reuters (MarketScreener))
  • IREN (IREN) · Slid alongside the neocloud selloff as a miner that pivoted to AI cloud capacity. (Reuters (MarketScreener))
  • NVIDIA (NVDA) Close -1.84% · Closed lower as AI funding worries persisted, though it trimmed losses after its chief executive's remarks on CoreWeave. (TradingKey)
  • AMD (AMD) · Fell more than 3% intraday as the broader chip pullback continued. (CNBC)
  • Marvell Technology (MRVL) · Dropped more than 3% intraday as expectations for data-center chip demand wavered. (CNBC)
  • Micron (MU) · Reversed an earlier decline tied to CXMT's push into server DRAM and turned higher during the session. (TradingKey)
  • Western Digital (WDC) · Stayed weak on pricing worries for high-end products after CXMT said it would launch a denser server DRAM chip this year. (24/7 Wall St.)
  • Sandisk (SNDK) · Fell with the group on China competition fears across memory even though it has no server DRAM line. (24/7 Wall St.)
  • Roundhill Memory (DRAM) · The memory-focused ETF declined as China competition fears spread across its holdings. (24/7 Wall St.)
  • TSMC (TSM) · Slipped despite a record third quarter and robust AI demand, as analysts flagged fourth-quarter margin pressure. (AskTraders)
  • VRT (VRT) · Fell close to 6% intraday after two brokerages cut price targets, underlining doubts about data-center equipment spending. (CNBC)
  • INTU (INTU) · Rose 6% intraday after announcing a deal for revenue-management platform Sequence, leading software strength. (CNBC)
  • CRM (CRM) · Gained close to 4% intraday as money rotated into cloud software with lighter capital spending needs. (CNBC)
  • KMB (KMB) · Rose 4% intraday as preliminary third-quarter results beat estimates, showing the shift into defensive consumer names. (CNBC)
  • FMC (FMC) · Plunged 32% intraday after slashing its third-quarter guidance, the day's biggest single-stock drop. (CNBC)

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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