U.S. equities pushed higher on Tuesday, but the market's leadership shifted notably away from the tech-heavy Nasdaq as the session progressed. The S&P 500 climbed 0.72% to 7,830.08 by 12:51 p.m. EDT, keeping the index on pace for a fresh record close. The advance was spearheaded by utilities, which jumped 2.51%, while the small-cap Russell 2000 slipped 0.20%.
The divergence between large-cap and small-cap performance is a key signal for investors assessing the durability of Monday's megacap-driven rally. The S&P 500 added 0.18% from its opening level, while the Nasdaq slipped 0.03% intraday despite remaining 0.65% above Monday's close. Market breadth improved but remained tepid: nine of 11 major sector funds were in the green, and 52% of the 4,944 stocks tracked by StockTi advanced versus 44% that declined.
Treasury yields and oil shape the tape
Falling Treasury yields provided a tailwind for long-duration equities. The 10-year yield eased 3.4 basis points to 5.277% from Monday's close, though it ticked up 0.6 basis point since the equity open. The dollar index slipped 0.29%, adding to the supportive backdrop. However, oil complicated the picture: Brent crude recovered to $100.06 per barrel after touching a session low of $97.09, leaving the commodity only 0.26% lower. The S&P 500 remained below its intraday high of 7,844.02 as crude rebounded.
Sector rotation: utilities and real estate lead
Liquid sector ETFs showed clear rotation toward defensive and rate-sensitive areas. Utilities (XLU) surged 2.51% from Monday's close, real estate (XLRE) gained 1.20%, industrials (XLI) added 1.13%, and consumer discretionary (XLY) rose 1.04%. On the downside, health care (XLV) fell 0.10% and communication services (XLC) dropped 0.21%.
The utility rally was powered by Constellation Energy (NASDAQ:CEG), which soared 14.88% after announcing a 20-year agreement with Google (Alphabet Inc., NASDAQ:GOOGL) to support 890 megawatts of new nuclear capacity. The deal enables more than $4.3 billion in investment across 11 units. Constellation CEO Joe Dominguez called expanded nuclear output "critical to meeting our nation's growing energy needs."
Corporate moves and analyst upgrades
Other notable corporate actions included Option Care Health (NASDAQ:OPCH), which jumped 33.08% after agreeing to a $32.05-per-share takeover by McKesson Corporation (NYSE:MCK). Lamb Weston Holdings (NYSE:LW) rose 12.33% after raising its profit outlook, and Marvell Technology (NASDAQ:MRVL) gained 4.98% following new long-range revenue targets.
Fresh analyst upgrades also provided pockets of strength. Morgan Stanley upgraded BorgWarner (NYSE:BWA) to Overweight with a $95 target (from $71), sending shares up 5.30%. Deutsche Bank initiated Buy ratings on PENN Entertainment (NASDAQ:PENN) at $25 (from $23) and Boyd Gaming (NYSE:BYD) at $99 (from $98); those stocks rose 4.70% and 2.36%, respectively. These moves outpaced the consumer discretionary sector's 1.04% gain, underscoring that ratings, not just falling yields, shaped Tuesday's winners.
Economic data and market outlook
Economic data did little to derail the advance. The U.S. trade deficit widened 13.7% to $105.6 billion in August, with imports up 4.3% and exports up 1.4%.
Looking ahead, the next test is Tuesday's $58 billion three-year Treasury auction at 1 p.m. EDT, followed by the release of the Federal Reserve's September 15–16 meeting minutes on Wednesday. Those events could determine whether Tuesday's 3.4-basis-point yield retreat holds. Risks remain: a renewed oil surge or another Treasury selloff could reverse the rate-sensitive rotation, and small-cap weakness limits evidence of broad risk appetite. Constellation's first planned nuclear uprate is not expected until 2028.
