Here are Wednesday's biggest calls on Wall Street: Bernstein initiates Iris Energy and Core Scientific as outperform Bernstein said it's bullish on several bitcoin miners on Tuesday night. "We extend our Bitcoin equities coverage to two additional Bitcoin miners with a hybrid Bitcoin/AI data center strategy. We initiate on IREN ( $26, 78% upside) and CORZ ($17, 64% upside) with an Outperform.

" Argus upgrades Teva to buy from hold Argus said the pharmaceuticals company has a robust pipeline. "Upgrading to BUY. After several years of challenges, Teva appears to have steadied its ship, launching a range of new drugs and achieving margin growth across all of its three primary business segments.

" Piper Sandler downgrades Target to neutral from overweight Piper downgraded the stock following a change in analyst coverage. "We like TGT's strong omni-channel model and believe the company has exceptionally strong merchandising capabilities. Furthermore, we believe both the 2024 EPS guidance and medium-term EBIT margin target of 6% look reasonable.

That said, we don't see a discernable catalyst to push sales/margin above estimates near-term." Jefferies reiterates Walmart as a top pick Jefferies said it's sticking with Walmart as its top idea. "We continue to believe that the company is in the early innings of a $20B+ EBIT growth opportunity and share below some of the latest developments that include a partnership with Fox Robotics and Sam's Clubs' new exit arch technology.

WMT remains .