Micron, Roblox, Quanta Services

Futures tied to the S&P 500 and the Nasdaq nudged higher on Wednesday as investors assessed measured comments from U.S. Federal Reserve Chair Jerome Powell and looked ahead to key economic data due later in the week.

** Alibaba.com Ltd <BABA.N>:

BUZZ - Leads rally in US-listed Chinese stocks after unveiling AI model

** Micron Technology Inc <MU.O>:

BUZZ - Rises on strong revenue outlook driven by AI demand

** Adobe Inc <ADBE.O>:

BUZZ - Falls after Morgan Stanley rating downgrade to 'equal-weight'

** Roblox Corp <RBLX.N>:

BUZZ - Rises as Piper Sandler hikes target price to street high

** Quanta Services Inc <PWR.N>:

BUZZ - Gains on Jefferies' rating upgrade, street-high target price

** Lithium Americas Corp <LAC.N>:

BUZZ - Soars after report Trump admin mulling stake

** Bloom Energy Corp <BE.N>:

BUZZ - Falls after Jefferies downgrades stock to 'underperform'

** SHF Holdings Inc <SHFS.O>:

BUZZ - Nearly triples on $150 million stock sale deal

** Cyclerion Therapeutics Inc <CYCN.O>:

BUZZ - Jumps on MIT deal to develop depression drug

** Valley National Bankcorp <VLY.O>:

BUZZ - Shares rise as Jefferies upgrades to 'buy'

** UnitedHealth Group Inc <UNH.N>:

BUZZ - Raises PT on UnitedHealth on improvement in Optum unit

** LTC Properties Inc <LTC.N>:

BUZZ - Rises after BMO upgrades to 'market perform'

** Vor Biopharma Inc <VOR.O>:

BUZZ - Climbs after Stifel upgrades rating on autoimmune drug potential