Top Wall Street analysts changed their outlook on these top names. For a complete view of all analyst rating changes, including upgrades and downgrades, please see our analyst ratings page.

• Baird analyst Luke Junk upgraded Littelfuse, Inc. (NASDAQ:LFUS) from Neutral to Outperform, while raising the price target from $270 to $300. Littelfuse shares fell 1.6% to close at $249.45 on Thursday. See how other analysts view this stock.
• B of A Securities analyst Craig Siegenthaler upgraded the rating for Robinhood Markets, Inc. (NASDAQ:HOOD) from Underperform to Buy, while increasing the price target from $14 to $24. Robinhood shares slipped 3.4% to settle at $17.90 on Thursday. See how other analysts view this stock.
• BTIG analyst Peter Saleh upgraded Darden Restaurants, Inc. (NYSE:DRI) from Neutral to Buy and announced a $175 price target.. Darden Restaurants shares fell 0.2% to settle at $151.42 on Thursday. See how other analysts view this stock. See how other analysts view this stock.
• Wolfe Research analyst Scott Group upgraded the rating for United Airlines Holdings, Inc. (NASDAQ:UAL) from Peer Perform to Outperform, while announcing a $76 price target. United Airlines shares fell 0.3% to close at $54.78 on Thursday. See how other analysts view this stock.
• Berenberg analyst Nay Soe Naing upgraded Aspen Technology, Inc. (NASDAQ:AZPN) from Hold to Buy, while boosting the price target from $185 to $255. Aspen Technology shares fell 3.4% to settle at $213.88 on Thursday. See how other analysts view this stock.