NEW YORK (TheStreet) -- RATINGS CHANGES

Amazon (AMZN - Get Report) was upgraded to outperform from neutral by Wedbush, which set a $575 price target. Wedbush cited multiple reasons for the upgrade, including the following: (1) the strong comp from Netflix (NFLX - Get Report); (2) faster Amazon Web Services (AWS) growth than previously thought at impressive margin; (3) momentum in the AWS Marketplace segment; (4) greater sales traction from Prime Day than expected; (5) faster growth in Amazon Prime than expected; and (6) the increased likelihood that Amazon can add at least $2 billion to revenue from capturing PayPal (PYPLV) payments.

Apache (APA - Get Report) was upgraded to buy from neutral by Citigroup, which set a $62 price target, saying the stock has pulled back to an attractive level.

Baker Hughes (BHI) was downgraded to hold by TheStreet Ratings. You can view the full analysis from the report here: BHI Ratings Report.

Epizyme (EPZM - Get Report) was downgraded to neutral by HC Wainwright, which set a $22 price target, saying the company lacks near-term catalysts.

Fibrogen (FGEN - Get Report) was upgraded to buy from neutral by Goldman Sachs, which set a $32 price target, saying the stock has pulled back to an attractive level.

Heritage Insurance (HRTG - Get Report) was downgraded to market perform from market outperform by JMP Securities, which said the downgrade follows a strong performance and valuation re-rating.

Hertz Global (HTZ - Get Report) was reinstated overweight by Credit Suisse, which set a $23 price target, saying that Hertz is completing its financial restatement and providing a 2015 outlook.

Kraft Heinz (KHC - Get Report) was started at market perform by BMO Capital, which set an $80 price target, saying the company is facing sales growth challenges.

Ply Gem (PGEM) was upgraded to buy from hold by Deutsche Bank, which set a $16 price target, saying that fundamentals should turn around and expectations are low.

Progressive Corp. (PGR - Get Report) was downgraded to sell from hold by Deutsche Bank, which set a $27 price target, citing valuation. While the company's earnings are far less risky and far more consistent than most property-and-casualty insurers and deserve a premium to those companies, long-term prospects for growth in the broad economy are far more certain than Progressive's, Deutsche Bank said.

Solera (SLH) was downgraded to neutral from overweight by Piper Jaffray, which set a $43 price target, saying that the company has had disappointing earnings and that acquisitions are diluting the shares.

SanDisk (SNDK) was upgraded to neutral from reduce by Nomura, which set a $50 price target, saying that the shares have significantly underperformed year to date (-43%), but are pricing in execution and market-share risks.

SanDisk (SNDK) was downgraded to hold by TheStreet Ratings. You can view the full analysis from the report here: SNDK Ratings Report.

SunTrust Banks (STI - Get Report) was downgraded to market perform from outperform by BMO Capital, which cited valuation, based on a $47 price target.

Yelp (YELP - Get Report) was downgraded to equal-weight from overweight by Barclays, which set a $36 price target, saying the company is facing increased competition.

Zillow (Z - Get Report) was downgraded to underweight from equal-weight by Barclays, which set a $70 price target, saying that competition is rising in local markets.