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.

• HSBC analyst Saul Martinez downgraded the rating for American Express Company (NYSE:AXP) from Buy to Hold. American Express shares fell 0.8% to close at $273.79 on Monday. See how other analysts view this stock.
• Keybanc analyst John Vinh downgraded the rating for QUALCOMM Incorporated (NASDAQ:QCOM) from Overweight to Sector Weight. Qualcomm shares fell 1.2% to close at $166.94 on Monday. See how other analysts view this stock.
• TD Cowen analyst Robert Moskow downgraded Constellation Brands, Inc. (NYSE:STZ) from Buy to Hold and slashed the price target from $300 to $270. Constellation shares fell 1.5% to close at $243.07 on Monday. See how other analysts view this stock.
• Wolfe Research analyst Nigel Coe downgraded Otis Worldwide Corporation (NYSE:OTIS) from Outperform to Peer Perform. Otis Worldwide shares fell 0.5% to close at $104.02 on Monday. See how other analysts view this stock.
• Keybanc analyst John Vinh downgraded the rating for Synaptics Incorporated (NASDAQ:SYNA) from Overweight to Sector Weight. Synaptics shares fell 0.4% to close at $76.06 on Monday. See how other analysts view this stock.

Considering buying QCOM stock? Here's what analysts think:

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