** Shares of AI chip heavyweight Nvidia NVDA.O edge 0.9% higher to $122.74 in premarket trading
** Co's closely watched GTC AI Conference begins Monday; CEO Jensen Huang to deliver keynote speech on Tuesday
** Nvidia looks to be accelerating ramp for Blackwell 300 chip, UBS Global Research analysts say
** Ramp up in Q1 and initial second quarter indications in back-end testing indicate Blackwell units tripling and up 20% to 30% quarter over quarter, respectively - UBS
** However, upside growth in 2025's second half may be capped, says UBS
** BofA Global Research, in a March 11 note, says it expects "attractive albeit well-expected updates" on Blackwell Ultra at GTC
** Quantum computing stocks rise premarket: D-Wave Quantum up QBTS.N 4.8%, Quantum Computing QUBT.O up 15.8%, Rigetti Computing RGTI.O gains 2%, IONQ IONQ.N up 3%
** Nvidia's Huang to host panel on quantum computing with representatives from firms including D-Wave, IONQ, Rigetti
** NVDA shares trading at 26.32 times forward earnings, down from five year average of 41.51, as per LSEG data
** NVDA shares down 9.4% year-to-date on worries about future demand sparked by China's DeepSeek, U.S. tariffs and broader selloff in U.S. equities
(Reporting by Lisa Mattackal)
((LisaPauline.Mattackal@thomsonreuters.com;))
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