RATINGS CHANGES

Amazon (AMZN) - Get Report was upgraded to buy from hold at Canaccord Genuity. $750 price target. The valuation is more attractive, following the stock's 25% year-to-date selloff, Canaccord said. 

Build-A-Bear Workshop (BBW) - Get Report was upgraded to buy at TheStreet Ratings. You can view the full analysis from the report here: BBW.

Diamondback Drilling (FANG) - Get Report was downgraded to hold from buy at Canaccord Genuity. The valuation is not as attractive, based on a $65 price target, Canaccord said. 

Garmin(GRMN) - Get Report was downgraded to underweight from neutral at JPMorgan. The valuation is less attractive, based on a $36 price target, JPMorgan said.

Lexmark (LXK) was upgraded to neutral from underperform at Credit Suisse. $31 price target. The valuation is more attractive ahead of the company's quarterly earnings results, Credit Suisse said. 

Blue Nile (NILE) was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: NILE.

Priceline (PCLN) shares are now seen reaching $1,500, according to JMP Securities. Earnings estimates were also increased, as bookings growth is accelerating. Outperform rating. 

Shopify (SHOP) - Get Report was upgraded to buy from hold at Canaccord Genuity. $30 price target. The company continues to execute well and offered solid guidance, Canaccord said. 

Zynga (ZNGA) - Get Report was downgraded to sell at TheStreet Ratings. You can view the full analysis from the report here: ZNGA.

This article was written by a staff member of TheStreet.