In recent Wall Street updates, several companies have received ratings upgrades and downgrades from top analysts. Notably, Oppenheimer upgraded Nike (NKE) to Outperform from Perform, while Morgan Stanley upgraded Freeport-McMoRan (FCX) to Overweight from Equal Weight. However, Palantir (PLTR) and Vasta Platform (VSTA) faced downgrades from Monness Crespi and Morgan Stanley, respectively.

Nike, a well-known sports apparel and footwear company, has struggled in recent quarters due to unfavorable external and internal factors. However, Oppenheimer believes that the company will bounce back, upgrading its rating to Outperform and setting a price target of $120, up from $110.

Meanwhile, Freeport-McMoRan, a leading mining company, was upgraded by Morgan Stanley to Overweight. The analyst's research note highlighted positive trends such as global decarbonization and electrification, rising geopolitical tensions, and challenging supply chain conditions. The new price target is set at $62, up from $49.50.

On the downside, Palantir faced a downgrade from Monness Crespi, with the analyst citing its "gluttonous valuation" as the reason. The stock was downgraded to Sell from Neutral, with a lowered price target of $20.

Vasta Platform, a company in the education services sector in Brazil, also received a downgrade from Morgan Stanley. The analyst believes that the sector may experience lower multiples in the future, leading to an Underweight rating and a reduced price target of $3, down from $4.50.

Other notable updates include Outset Medical (OM), Prestige Consumer (PBH), Penn Entertainment (PENN), CME Group (CME), Northrop Grumman (NOC), Palo Alto Networks (PANW), Marriott (MAR), and Viking Holdings (VIK).

Analysts' recommendations and price targets should be taken into consideration by investors, as they provide insights into the potential performance of these companies.