Stock Market Today: S&P 500 Falls 0.51% as Tech and Energy Slump
The S&P 500 and Nasdaq retreated as tech and energy shares tumbled, while the Dow added 213.67 points and crude oil plunged 7.55%.
- The S&P 500 shed 0.51% to 7,541.40, while the Dow gained 0.41% to 51,983.98.
- Energy fell 3.96% as WTI crude oil plunged 7.55% to $96.26 per barrel.
- Idexx Laboratories surged 21.85% to $671.64, while Lumentum plummeted 18.59% to $684.40 on acquisition news.
Major Indexes Diverge
US stocks closed mixed on Monday, with the S&P 500 declining 38.67 points, or 0.51%, to finish at 7,541.40. The tech-heavy Nasdaq Composite dropped 1.07% to 25,164.32, while the Russell 2000 slipped 0.21% to 2,805.88. Bucking the trend, the Dow Jones Industrial Average gained 0.41%, or 213.67 points, to end at 51,983.98. Meanwhile, the CBOE Volatility Index jumped 8.91% to 21.15, and the 10-year Treasury yield fell 3 basis points to 4.89%.
Sectors Divided as Tech and Energy Drag
Eight of the 11 major sectors finished in positive territory despite the broader market decline. Consumer Discretionary led the gainers with a 2.41% advance, followed by Financials with a 1.86% gain and Materials up 1.76%. On the downside, Energy slid 3.96%, seeing just 1 advancing stock against 69 decliners alongside a 7.55% drop in WTI crude oil to $96.26 per barrel. Information Technology was also a heavy drag, sinking 2.95% on the day.
Market Breadth Remains Resilient
Despite weakness in the headline indexes, market breadth was positive across the S&P Composite 1500, with 1,029 advancers outpacing 473 decliners. Among index components, 62.00% traded above their 50-day moving average and 57.00% stood above their 200-day moving average. The universe saw 82 new 52-week highs and 19 new 52-week lows, with large-cap names such as Mastercard, Coca-Cola, and Pfizer touching fresh 52-week highs.
Mergers and High Volume Move Individual Stocks
Lumentum and Marvell Technology were among the session's steepest losers, falling 18.59% to $684.40 and 12.72% to $171.41, respectively, following filings detailing an agreement for Marvell to acquire Lumentum in an all-stock transaction valued at $115 billion. Other notable tech decliners included Micron Technology, which slipped 5.78% to $833.59, and Ciena, which dropped 11.34% to $284.34. Leading the gainers, Idexx Laboratories surged 21.85% to $671.64 on more than triple its normal volume, while Newell Brands jumped 15.06% to $5.96.
On Deck for Next Session
Investors will watch a busy corporate earnings slate on Tuesday, November 3, 2026. Ahead of the opening bell, reports are scheduled from Shopify, Pfizer, Eaton Corporation, and Marathon Petroleum. After the market close, results are due from Advanced Micro Devices, Amgen, Arista Networks, and Booking Holdings.
Written with AI from the closing data in the tables on this page; every figure in the text was checked against that data before publishing. Prices are end-of-day. Not investment advice.