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

• Morgan Stanley analyst Stephen Grambling upgraded the rating for Norwegian Cruise Line Holdings Ltd. (NYSE:NCLH) from Underweight to Equal-Weight but lowered the price target from $27 to $22. Norwegian Cruise shares closed at $20.09 on Thursday. See how other analysts view this stock.
• Morgan Stanley analyst Stephen Grambling upgraded Host Hotels & Resorts, Inc. (NASDAQ:HST) from Underweight to Equal-Weight but slashed the price target from $16 to $15. Host Hotels shares closed at $15.12 on Thursday. See how other analysts view this stock.
• Seaport Global analyst Scott Graham upgraded the rating for nVent Electric plc (NYSE:NVT) from Neutral to Buy and announced a $74 price target. nVent Electric shares closed at $56.86 on Thursday. See how other analysts view this stock.
• DA Davidson analyst Michael Baker upgraded AutoZone, Inc. (NYSE:AZO) from Neutral to Buy and raised the price target from $3,500 to $4,192. AutoZone shares closed at $3,573.38 on Thursday. See how other analysts view this stock.
• JP Morgan analyst Samik Chatterjee upgraded the rating for Super Micro Computer, Inc. (NASDAQ:SMCI) from Underweight to Neutral and raised the price target from $35 to $45. Super Micro Computer shares closed at $39.10 on Thursday.  See how other analysts view this stock.

Considering buying SMCI stock? Here’s what analysts think:

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