US stocks dip as AI hardware sells off on Meta cloud report

US stocks finished slightly lower on Wednesday, July 1, 2026, and the small index moves hid a sharp rotation underneath. The S&P 500 slipped 0.22% to 7,483.23, the Nasdaq Composite fell 0.66% to 26,040.03, and the Dow gave up 13.96 points to 52,305.24 after touching a fresh intraday high. The trigger was a report that Meta Platforms (META.US) plans to build a cloud business to sell its excess artificial-intelligence compute. Investors read that as a sign that AI-compute supply is starting to catch up with demand, so they sold the companies that build the hardware. Meta rose 8.8%, while the chip, memory and AI-cloud names that led the market to records a day earlier fell hard.

What moved the index

Two forces pulled against each other and nearly cancelled out. Chips and AI hardware were the biggest weight: memory makers Micron (MU.US) and SanDisk (SNDK.US) each fell about 10.6%, chip-equipment names KLA (KLAC.US) and Teradyne (TER.US) dropped more than 11%, and AI-cloud providers Nebius (NBIS.US) and CoreWeave (CRWV.US) sank 17.0% and 13.9%. That group took an estimated 45 to 55 basis points off the S&P 500. Pulling the other way, Meta's 8.8% gain, one of the largest weights in the index, plus advances across software and internet shares, added back roughly 35 to 40 basis points, and a rise in health-care shares added a few more. The net was the 0.22% decline, about 16 points.

Session highlights

The market opened lower as fresh US-Iran tension clouded the start of the second half, then drifted between small gains and losses before fading into the close. Oil fell to a four-month low, and Treasury yields rose across the board, with the 10-year yield firming about five basis points to 4.47%. Volatility stayed calm: the VIX added 0.85% to 16.59, and the small-cap Russell 2000 eased 0.39% to 3,012.59. It was a quiet first day of the third quarter, one session after June 30 ended the second quarter at a record.

Sector scorecard

Technology and semiconductors led the decline, held down by memory, chip equipment and AI-infrastructure names. Communication services was the standout gainer on Meta's move. The established cloud providers Amazon (AMZN.US), Microsoft (MSFT.US) and Alphabet (GOOGL.US) held small gains. Software and internet shares rose as money left the crowded AI-hardware trade. Health care advanced, helped by diagnostics and a firmer tone across managed-care insurers. Energy lagged as crude slid to a four-month low.

Top movers

Gainers:

• Reddit (RDDT.US) rose 13.9% to $197.76 as investors returned to its AI data-licensing and advertising-growth story, a sharp rebound after roughly a 28% slide over six months.
• Guardant Health (GH.US) gained 13.8% to $170.77 after UnitedHealth said it would cover the company's blood-based cancer test.
• Oscar Health (OSCR.US) climbed 11.9% to $31.90 as health insurers rose while money left the AI-hardware trade.
• AppLovin (APP.US) advanced 9.6% to $564.61 with the day's move into software and adtech shares.
• Meta Platforms (META.US) jumped 8.8% to $612.91 on the report it will sell its spare AI compute as a cloud service.

Losers:

• Nebius (NBIS.US) fell 17.0% to $229.18, the hardest hit, since its business of renting AI compute looks most exposed if Meta sells its own spare capacity.
• CoreWeave (CRWV.US) dropped 13.9% to $85.69 on the same worry that hyperscaler capacity could undercut third-party compute rental.
• Corning (GLW.US) lost 13.6% to $220.63 as the optical-connectivity supplier to data centers fell with the AI-infrastructure group.
• KLA (KLAC.US) declined 11.8% to $266.19, reversing one session after it helped lead the semiconductor rally.
• Teradyne (TER.US) fell 11.7% to $427.34 as chip-test equipment sold off with the wider AI-hardware group.

After the bell

The post-close calendar was quiet in the holiday-shortened week, with no major S&P 500 company reporting after Wednesday's bell. Attention turns to Thursday's June jobs report, pulled forward from its usual Friday slot because the market is closed for Independence Day.

Data and what comes next (ET)

Two June readings landed on Wednesday and both came in soft. The ISM Manufacturing PMI slipped to 53.3 from 54.0, below the 53.8 that economists expected, though factory activity has now expanded for 20 straight months; the prices component fell to 73.0 from 82.1, a sign that input-cost pressure is easing. ADP said private employers added 98,000 jobs in June, fewer than the roughly 118,000 expected, with pay growth steady at 4.4% and a drop in planned layoffs. The main event is Thursday's June nonfarm payrolls report, moved up a day for the holiday. Thursday is a shortened session, with the stock market closing at 1:00 pm ET, and markets are closed on Friday, July 3, reopening Monday, July 6.

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