BUZZ-US stocks weekly: Mishmash

** S&P 500 .SPX snaps three-week winning streak, finishes down 0.6% .N

** Nasdaq Composite .IXIC breaks above 20K mark for the first time, ekes out fourth straight weekly advance, while the Dow .DJI retreats 1.8%, extends losing run to three weeks

** U.S. 10-Year Treasury yield US10YT=RR ascends to around 4.4%, set for first rise in four weeks, to highest since Nov 22

** Nearly every sector declines: Materials and bond-proxies sag most, while just Consumer Discretionary and Communication Services lift

** Materials .SPLRCM melt 2.9%. Steelmakers Nucor NUE.N, Steel Dynamics STLD.O biggest sector losers after UBS downgrades. NUE and STLD fall 12% and ~11%, respectively, on the week

** Healthcare .SPXHC droops 2.4%. Health insurers fall on potential legislation aimed at breaking up pharmacy-benefit managers. Cigna CI.N and CVS Health CVS.N both shed ~11%

** Industrials .SPLRCI slide 2.3%. GE Vernova GEV.N down after power equipment maker forecasts lower 2025 rev in wind segment

However, Boeing BA.N up 10% on week after planemaker commits $1 bln to help increase 787 jet production

** Energy .SPNY drops 2.1%. Exxon Mobil XOM.N forecasts higher capex in 2025; shares fall

** Consumer Staples .SPLRCS dip 0.7%. Costco COST.O inches higher Fri after qtrly sales, profit beats with analysts calling for continued long-term growth. Still, COST ends week down 0.3%

But Walgreens WBA.O is top sector sector performer, up 21%, after report pharmacy chain in talks to sell itself to PE firm Sycamore Partners

And Kroger KR.N up after US court blocks $25 bln merger with grocer Albertsons ACI.N, KR adds to gains after initiating $7.5 bln share buyback program

Hershey HSY.N jumps on Mon after reported Mondelez MDLZ.O takeover approach, then HSY surrenders some of those earlier gains on Weds after report main owner, The Hershey Trust, rejected the Oreo cookie maker's offer

Meantime, MDLZ rises on 'bolt-on' acquisition strategy, new $9 bln buyback plan

** Tech .SPLRCT ticks down 0.2%. Adobe ADBE.O slides on downbeat FY25 rev forecast on slower subscription spending, and Oracle ORCL.N falls after qtrly results miss on stiff cloud competition

Nvidia NVDA.O down after China opens investigation on co over suspected violation of antimonopoly law

On the bright side, Broadcom AVGO.O rises Weds on reported collaboration with Apple AAPL.O to develop AI chip, then surges to $1 trillion market value on Fri and lifts chip index after optimistic outlook. AVGO notches 25% weekly gain

For the week, semiconductor index .SOX gains 1.8%

** Consumer Discretionary .SPLRCD up 1.4%. Tesla TSLA.O accelerates to record high, stretches rally in wake of U.S. presidential election as EV maker seen benefiting from CEO Musk's relationship with Trump

** Communication Services .SPLRCL score 2.4% gain. Google parent Alphabet GOOGL.O leaps >8% after introducing new quantum-computing chip called Willow

Warner Bros Discovery WBD.O jumps on plan to split TV and streaming units

** Meanwhile, bulls back down in latest individual investor sentiment survey, though software maker ServiceTitan TTAN.O soars in stellar debut in encouraging sign for the IPO market

** SPX performance YTD:

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com))