Top US Analyst Ratings: BSX, MU, TRP, WBA

Boston Scientific Corp. BSX was raised to Buy from Hold at Argus, with a $33 price target.

Micron Technology Inc. MU reiterated as Buy at Cowen, and raised its price target to $19 from $15.

TransCanada Corp. TRP was started with a Buy and a U.S. target of price of $52 at Merrill Lynch.

Walgreens Boots Alliance Inc. WBA reiterated as Outperform at Credit Suisse, and added to Focus List.

Enova International Inc. ENVA was started as Buy with a $12 price target at Jefferies. 

Orbital-ATK Inc. OA was started as Buy with a $100 price target at Deutsche Bank.

Pentair PLC PNR was downgraded to Underperform from Market Perform with a $55 price target at Cowen.

Spectrum Brands Holdings Inc. SPB was started as Overweight with a $147 price target at Piper Jaffray.

Wex Inc. WEX was raised to Outperform from Underperform with a $115 price target at CLSA.