Cowen believes McDonald's digital ordering upgrades will drive the fast-food chain's sales higher.
Twitter shares popped Wednesday after a research firm said advertisers gave "more constructive" feedback on the company's strategy.
Citi Research lowers its rating on Target to neutral from buy, citing increasing competition from Amazon.
Bank of America Merrill Lynch lowers its rating on Intel to neutral from buy, citing increasing competition from AMD and Nvidia.
Pacific Crest reverses itself on Nvidia stock due to rising cryptocurrency mining demand for its graphics cards.
Morgan Stanley raises its price target for Microsoft to $80 from $72, saying the company will report profits above expectations next year.
Deutsche Bank lowers its rating on Costco to hold from buy, citing increasing competition from Amazon.
JPMorgan lowers its rating on Nike shares to neutral from overweight, saying the company will miss earnings expectations next year.
Canaccord Genuity lowers its rating on Alphabet shares to hold from buy, saying its valuation is "expensive by historical standards."
Berenberg gives Tesla shares the most bullish forecast on Wall Street.