Wall Street's Top Analyst Calls: Upgrades and Downgrades for Zimmer Biomet, Southwest, DoorDash, and More

Several Wall Street analysts have issued research calls. Upgrades include Roth Capital upgrading Zimmer Biomet to Buy, JPMorgan upgrading Otis Worldwide to Overweight, Morgan Stanley upgrading Solventum to Overweight, BofA upgrading National Fuel to Buy, and Morgan Stanley upgrading Steris to Overweight. Downgrades include Jefferies downgrading DoorDash to Hold, Evercore ISI downgrading Southwest to In Line, Monness Crespi downgrading American Express to Neutral, JPMorgan downgrading Enphase Energy and SolarEdge to Neutral, and Wells Fargo downgrading Waters to Equal Weight.

Several Wall Street analysts have issued mixed research calls on a range of companies, with some upgrades and others downgrades. The changes in analyst ratings reflect varying market sentiments and expectations for these companies' future performance.

Upgrades:

- Zimmer Biomet (NYSE: ZBH): Roth Capital Partners upgraded Zimmer Biomet to "Buy," citing the company's strong market position and potential growth opportunities in orthopedic robotics [3].
- Otis Worldwide (NYSE: OTC): JPMorgan Chase upgraded Otis Worldwide to "Overweight," highlighting the company's robust financial performance and market leadership in the elevator and escalator industry [1].
- Solventum (NASDAQ: SOTU): Morgan Stanley upgraded Solventum to "Overweight," noting the company's innovative technology and strong market demand for its products [1].
- National Fuel (NYSE: NFG): Bank of America upgraded National Fuel to "Buy," recognizing the company's strategic position in the natural gas industry and its ability to generate consistent cash flow [1].
- Steris (NYSE: STER): Morgan Stanley upgraded Steris to "Overweight," emphasizing the company's leadership in the sterilization and life sciences sectors and its potential for growth [1].

Downgrades:

- DoorDash (NYSE: DASH): Jefferies downgraded DoorDash to "Hold," citing concerns about the company's high valuation and intense competition in the food delivery market [1].
- Southwest Airlines (NYSE: LUV): Evercore ISI downgraded Southwest to "In Line," expressing caution about the company's financial performance and the impact of the ongoing economic downturn [1].
- American Express (NYSE: AXP): Monness Crespi downgraded American Express to "Neutral," noting the company's recent challenges in the credit card market and the potential for increased competition [1].
- Enphase Energy (NASDAQ: ENPH): JPMorgan Chase downgraded Enphase Energy to "Neutral," citing concerns about the company's high valuation and the competitive landscape in the solar energy sector [1].
- SolarEdge (NASDAQ: SEDG): JPMorgan Chase downgraded SolarEdge to "Neutral," expressing caution about the company's high valuation and the potential for increased competition in the solar energy industry [1].
- Waters Corporation (NYSE: WAT): Wells Fargo downgraded Waters to "Equal Weight," noting the company's recent challenges in the water treatment market and the potential for increased competition [1].

The mixed research calls from these analysts provide valuable insights into the market's expectations for these companies. Investors should carefully consider these updates and conduct their own analysis before making investment decisions.

References:
[1] https://247wallst.com/companies/tsla/page/38/?tpid=1499889&utm_campaign=feed&utm_content=feed1499889&utm_medium=referral&utm_source=yahoo
[2] https://www.marketbeat.com/instant-alerts/knightscope-nasdaqkscp-rating-increased-to-hold-at-wall-street-zen-2025-07-12/
[3] https://www.biospace.com/press-releases/zimmer-biomet-announces-definitive-agreement-to-acquire-monogram-technologies-expanding-robotics-suite-with-autonomous-solutions