The S&P 500 and the Nasdaq were set to open higher on Tuesday as investors parsed a fresh round of mega-cap earnings, while health insurers declined as the Trump administration's Medicare Advantage payment proposal disappointed investors. .N

** Micron Technology Inc MU.O:BUZZ - Jumps as $24 bln Singapore fab plan deepens AI memory push nL4N3YS0SD

** Hecla Mining Co HL.N:

** Coeur Mining Inc CDE.N:

** Endeavour Silver Corp EXK.N:

** Silvercorp Metals Inc SVM.N:

BUZZ - Silver miners jump premarket as spot prices surge nearly 8% nL4N3YS0T9

** Salesforce Inc CRM.N:BUZZ - Rises after winning $5.6 bln U.S. Army contract nL4N3YS0V7

** Boeing Co BA.N:BUZZ - Shares slide ahead of Q4 earnings report nL6N3YR155

** UnitedHealth Group Inc UNH.N:BUZZ - Falls after smaller-than-estimated rate hike for Medicare Advantage plans nL4N3YS0ZB

** Newmont Corp NEM.N:

** Gold Fields Ltd GFI.N:

** AngloGold Ashanti PLC AU.N:

** Harmony Gold Mining Co Ltd HMY.N:

BUZZ - Gold miners gain as bullion rises on safe-haven demand nL6N3YS0OA

** United Parcel Services Inc UPS.N:BUZZ - Forecasts higher 2026 revenue; shares rise nL4N3YS10H

** Procter & Gamble Co PG.N:BUZZ - TD Cowen downgrades Procter & Gamble as US market pressures mount nL6N3YS0PC

** General Motors Co GM.N:BUZZ - Shares rise on higher Q4 core profit nL4N3YS11I

** Humana Inc HUM.N:

** CVS Health Corp CVS.N:

** Elevance Health Inc ELV.N:

** Molina Healthcare Inc MOH.N:

BUZZ - US health insurers fall as Medicare Advantage proposal disappoints nL6N3YS0KA

** Cloudflare Inc NET.N:BUZZ - Set to gain for fourth session as AI agent Clawdbot sparks online buzz nL4N3YS0Y4

** Ellington Financial Inc EFC.N:BUZZ - Drops after mREIT's $119 mln stock sale nL6N3YS0RK

** Affirm Holdings Inc AFRM.O:BUZZ - Rises after Needham upgrades to 'buy' rating nL6N3YS0R9

** RTX Corp RTX.N:BUZZ - Posts higher quarterly sales, profit; shares rise nL4N3YS15O

** Northrop Grumman Corp NOC.N:BUZZ - Forecasts annual sales below estimates; shares fall nL4N3YS14L

** Kimberly-Clark Corp KMB.O:BUZZ - Up after Q4 profit beat nL6N3YS0RR

** American Airlines Group Inc AAL.O:BUZZ - Rises on upbeat 2026 profit forecast nL4N3YS17J

** ProPetro Holding Corp PUMP.N:BUZZ - Slides after boosted $150 mln equity raise nL6N3YS0SA

** HCA Healthcare Inc HCA.N:BUZZ - Rises after forecasting 2026 profit above estimates nL4N3YS195

** Datadog Inc DDOG.O:BUZZ - Scotiabank cuts Datadog's PT, adjusts for OpenAI exposure nL6N3YS0T2

** JetBlue Airways Corp JBLU.O:BUZZ - Falls after reporting wider-than-expected Q4 loss nL4N3YS131

** Pinterest Inc PINS.N:BUZZ - Falls after announcing layoffs nL4N3W90VX

** Cardiff Oncology Inc CRDF.O:BUZZ - Plunges after top executives step down nL4N3YS1DX

** Intellia Therapeutics Inc NTLA.O:BUZZ - Jumps as FDA lifts hold on gene‑editing trial for rare nerve disease nL4N3YS1G0

** Corning Inc GLW.N:BUZZ - Jumps after report of fiber-optic cable deal with Meta nL6N3YS0UO

** Lexeo Therapeutics Inc LXEO.O:BUZZ - Rises as it announces leadership changes nL4N3YS1C7

** NextEra Energy Inc NEE.N:BUZZ - Dips after Q4 revenue miss nL6N3YS0SZ

** Brown & Brown Inc BRO.N:BUZZ - Falls as organic growth slows nL6N3YS0GB

(Compiled by Rajarshi Roy and Dharna Bafna)

((Rajarshi.Roy@thomsonreuters.com))