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Stocks Lower, Russell −1.4%, Penguin +15.3%: Midday 10

Stocks — broadly lower after the records: Russell 2000 −1.4%, power and cooling names sold, Penguin +15.3%

The S&P 500 slips 0.4% and the equal-weight fund 0.8%; small caps lose most. Vicor −6.2%, nVent −4.7%, Vertiv −4.0%, while memory bounces — Micron +2.8%, SanDisk +3.1%. The 10-year rises to 5.32%, bitcoin −2.6%, gold −1.6%. Fed minutes at 14:00 ET.

In this edition

PENG VICR NVT VRT CEG SPY QQQ DIA

The Midday 10 Wed, Oct 7, 2026 ~60 seconds 12:30 ET

The day after two record closes, the market is lower across the board. The S&P 500 is down 0.4% at 7,787, the Nasdaq Composite 0.5%, the Dow 0.8%, and the Russell 2000 of smaller companies 1.4%. The equal-weight S&P fund RSP is down 0.8%, more than the index — most stocks are falling, not just a few large ones. Bond yields are back up: the 10-year at 5.32%, the 30-year at 5.69%.

The heaviest selling is in the companies that power and cool AI data centres. Vicor, which makes power modules for AI processors, is down 6.2%; nVent 4.7%, Vertiv 4.0%; Constellation Energy gives back 1.9% of Tuesday's 12% jump. The industrial sector fund XLI is the weakest sector at −2.1%. The data-centre operators slip too: Nebius −5.8%, CoreWeave −3.6%.

Two things go the other way. Memory bounces after Tuesday's sell-off — Micron +2.8%, SanDisk +3.1% — and Penguin Solutions jumps 15.3% after beating forecasts and raising its outlook. Health care is the strongest sector (+1.8%). Nvidia holds up better than the chip funds at −0.9%. The Fed publishes the minutes of its September meeting at 14:00 ET.

US intraday quotes at about 12:02 ET (16:02 UTC); moves are measured against Tuesday's closes. Intraday prints are not closes. Penguin Solutions' figures from its results release filed with the SEC.

  1. Penguin Solutions +15.3% to $74.03 after a beat and a raised outlook
  2. Power and cooling sold: Vicor −6.2% to $280.62, nVent −4.7% to $165.58, Vertiv −4.0% to $242.90, Constellation −1.9%
  3. Broad dip after the records: S&P 500 −0.41% at 7,787, Nasdaq −0.54%, Dow −0.82%, Russell 2000 −1.39%
  4. Memory bounces: Micron +2.8% to $1,074.86, SanDisk +3.1%; Seagate −0.2%, Western Digital −1.4%
  5. Chips lower: SMH −1.6%, SOXX −1.7%, equal-weight XSD −2.0%; Nvidia steadier at −0.9% ($237.12)
  6. Data-centre operators slip: Nebius −5.8% to $235.44, CoreWeave −3.6% to $88.39, Oracle −0.2%
  7. Defensives hold: health care XLV +1.8%, staples XLP +0.4%; Apple +0.3%, Amazon +0.6%
  8. Megacaps mixed to lower: Meta −2.1% to $723.71, Tesla −1.3%, Alphabet −0.6%, Microsoft −0.4%
  9. Yields up, euro, gold and bitcoin down: 10-year 5.32%, 30-year 5.69%; euro 1.1191, gold fund −1.6%, bitcoin −2.6% to $83,328
  10. Earnings card: Penguin Solutions trades 15.3% above its $64.21 start — the window closes Friday; PepsiCo reports Thursday before the open

The ten lines

  1. 1

    UP Penguin Solutions +15.3% to $74.03 after a beat and a raised outlook

    PENG

    Penguin Solutions sells memory modules and builds AI computing clusters. For its fiscal fourth quarter it reported sales of $567 million, up 68% from a year earlier, and adjusted earnings of $1.00 a share against $0.77 expected; memory-module sales rose to $341 million from $132 million. It now expects fiscal-2027 sales of about $2.43 billion at the midpoint, up from a preliminary $2.17 billion. At $74.03 the stock is 15.3% above Tuesday's close of $64.21.

  2. 2

    DOWN Power and cooling sold: Vicor −6.2% to $280.62, nVent −4.7% to $165.58, Vertiv −4.0% to $242.90, Constellation −1.9%

    VICRNVTVRTCEG

    These companies supply the power delivery and cooling for AI server racks. There is no single company news behind the move that we could find; Constellation gives back part of Tuesday's +12.2% after its power deal with Google. Vertiv was already 32.7% below its May high at Tuesday's close; Vicor had risen about 70% from its 1 September low.

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  4. 3

    LEVEL Broad dip after the records: S&P 500 −0.41% at 7,787, Nasdaq −0.54%, Dow −0.82%, Russell 2000 −1.39%

    SPYQQQDIAIWMRSP

    The S&P 500 and the Nasdaq Composite closed at records on Tuesday. Today the equal-weight S&P fund RSP is down 0.8% against 0.4% for the index, and the small-cap fund IWM 1.4% — the dip is wider than the headline index suggests. The volatility index VIX is at 15.38.

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Further reading on Closelooknet

Ten lines on the US midday tape, not advice — an investment diary. Published every trading day at 12:30 ET. See The Morning 10 and the Daily Pulse.