Goldman Sachs upped its price target and kept a neutral rating on CoreWeave (CRWV) after the company showed significant earnings growth. Sam Vadas explains what's keeping the analyst on the sidelines despite seeing more promise in price action. Marvell (MRVL) got multiple price target hikes of its own from Citi and Oppenheimer. Sam turns to a more mixed picture in Walmart (WMT) after one analyst upgraded the stock while another downgraded it.