U.S. stock index futures were muted on Thursday, as a drop in Qualcomm's shares added to concerns about stretched valuations in technology stocks, while mixed economic data fueled uncertainty about the U.S. economy. .N

** Duolingo Inc DUOL.O:BUZZ - Slides on weak Q4 bookings outlook; J.P. Morgan cuts PT nL6N3WI0GE

** AppLovin Corp APP.O:BUZZ - Jumps after estimate-beating Q4 revenue forecast, higher Q3 results nL6N3WI0IO

** Marvell Technology Inc MRVL.O:BUZZ - Rises after report SoftBank explored takeover of co nL4N3WI0ST

** Snap Inc SNAP.N:BUZZ - Jumps 16% as AI pivot boosts investor confidence nL4N3WI0UT

** Figma Inc FIG.N:BUZZ - Climbs after raising FY revenue forecast, higher Q4 rev guidance nL6N3WI0J6

** Newmont Corp NEM.N:

** Sibanye Stillwater Ltd SBSW.N:

** Gold Fields Ltd GFI.N:

** Kinross Gold Corp KGC.N:

BUZZ - Gold miners gain as bullion rises on a weak dollar, US shutdown woes persist nL4N3WI0WA

** Joby Aviation Inc JOBY.N:BUZZ - Gains after quarterly revenue beat nL4N3WI0XN

** Fortinet Inc FTNT.O:BUZZ - Tumbles on weak Q4 revenue outlook nL6N3WI0KP

** Johnson Controls International PLC JCI.N:BUZZ - Jefferies, RBC lifts PT on Johnson Controls on strong 2026 forecast nL4N3WI11Y

** Lyft Inc LYFT.O:BUZZ - Rises on strong holiday-quarter bookings forecast nL6N3WI0JR

** DuPont De Nemours Inc DD.N:BUZZ - Falls on downbeat Q4 estimates nL4N3WI10O

(Compiled by Rajarshi Roy and Arnav Mishra)

((Rajarshi.Roy@thomsonreuters.com))