SA analyst upgrades: NVDA, DJT, VKTX, BRK.A, BEAM

Here are the latest stock rating upgrades by Seeking Alpha analysts:

Nvidia (NASDAQ:NVDA). Sell to buy by The Techie. “China remains a significant uncertainty, but robust demand for Blackwell products and global AI infrastructure ambitions support my bullish case. Despite valuation being less attractive than in April, Nvidia’s leadership in AI and strong product roadmap make it a buy in my book.”

Berkshire Hathaway (NYSE:BRK.A) (NYSE:BRK.B). Hold to buy by Envision Research.

Trump Media (NASDAQ:DJT). Sell to hold by Mike Fay. “I’m upgrading DJT from ‘sell’ to ‘hold’ due to its recent $2.5 billion Bitcoin treasury announcement. Despite my prior bearish stance, DJT’s valuation concerns remain, but the Bitcoin move introduces a new angle that could limit the stock’s downside.”

Viking Therapeutics (NASDAQ:VKTX). Sell to hold by Stephen Ayers. “Viking Therapeutics faces tough competition in the obesity drug market dominated by Eli Lilly (LLY) and Novo Nordisk (NVO), with first-mover advantages hard to overcome…Despite some appeal for risk-tolerant investors, the odds are against Viking, so I rate the stock as a Hold, given the challenging landscape.”

Beam Therapeutics (NASDAQ:BEAM). Sell to hold by Stephen Ayers.

Criteo (NASDAQ:CRTO). Hold to buy by Sandeep Nital David.

PBF Energy (PRD). Sell to hold by Ronald Ferrie.