US PRE-MARKET MOVERS: NVDA, ORCL, IBM, WBD, KR, LOW, HPQ, WDAY, FSLR

ES +0.4% NQ +0.5% RTY +0.7% NVDA +0.7%: Ahead of earnings after-hours ORCL +2.5%: Upgraded at Oppenheimer IBM +1.7%: Upgraded at UBS WBD -0.5%: Said PSKY offer could be 'Superior' KR -1%: Downgraded at Wells Fargo LOW -3.5%: FY guidance light HPQ -5.5%: Weak guidance as it expects volatility in memory chips to persist even into next year & forecasts a slump in its PC shipments WDAY -10%: Weak next Q & FY outlook FSLR -17%: Profit light w/ dismal guidance