NEW YORK (TheStreet) -- RATINGS CHANGES

Aerie Pharmaceuticals (AERI) was upgraded to buy from hold by Canaccord Genuity, which set a 12-month price target of $40. After much anticipation, Aerie's interactions with the Food and Drug Administration have led to the following: 1) allow ROCKET 2's primary endpoint to include patients with a baseline IOP of 25 mmHg or below; and 2) agreement that the company may use a hierarchically-based statistical approach such that the three arms of the trial remain adequately powered (>85%) and no further enrollment is needed. ROCKET 2 is still expected to have results in Q3/15, Canaccord said.

Amedisys (AMED - Get Report) was upgraded to buy from hold by Jefferies, which set a 12-month price target of $48, saying that the company's new management team brings renewed energy and direction that will reaccelerate organic and M&A-driven growth and drive margin expansion.

BioMarin (BMRN - Get Report) was downgraded to neutral from outperform by Robert Baird, which cited valuation, based on a 12-month price target of $133.

BP (BP - Get Report) was downgraded to sector perform from outperform by RBC Capital, which said the downgrade is a valuation call, as the stock has outperformed its peers year-to-date.

Energy Focus (EFOI - Get Report) was upgraded to hold by TheStreet Ratings team. You can view the full analysis from the report here: EFOI Ratings Report.

Fiserv (FISV - Get Report) was upgraded to outperform from perform by Oppenheimer, which set a 12-month price target of $95, saying the company can continue to expand margins and return cash to shareholders.

IPC Healthcare (IPCM) was upgraded to buy from hold by Jefferies, which set a 12-month price target of $70, saying the company can see 35% to 40% of Ebitda upside in 2016 from its participation in the new bundled payment program that Medicare has rolled out.

Lightpath Technologies (LPTH - Get Report) was upgraded to hold by TheStreet Ratings team. You can view the full analysis from the report here: LPTH Ratings Report.

Lumenis (LMNS) was downgraded to hold from buy by Jefferies, which set a 12-month price target of $14. Lumenis is being acquired by investment firm XIO for $510 million, or $14 a share. While the price of the acquisition is below Jefferies' most recent target of $16, the likelihood of a higher offer is low, Jefferies said.

Micron (MU - Get Report) was upgraded to buy from hold by Topeka Capital, which set a 12-month price target of $34, saying the company can expand margins in the intermediate term.

Public Storage (PSA - Get Report) was downgraded to hold from buy by Cantor Fitzgerald, which set a 12-month price target of $199.50. The downgrade is driven by valuation (implied cap rate of 4.7% vs. 4.9% and 5.5% for self-storage REITs and REITs, overall, respectively), limited occupancy upside, rent growth expected to be somewhat in-line with the peers, and FFO/share. growth that is expected to lag (6.7% and 6.5% in 2015 and 2016 vs. 13.4% and 12.2% for self-storage peers), Cantor Fitzgerald said.

Sovran Self Storage (SSS) was upgraded to buy from hold by Cantor Fitzgerald, which set a 12-month price target of $102. The upgrade is driven by revised IRR-driven cap rate, operational upside and discounted valuation (Sovran is trading at an implied cap rate of 6.1% vs. 4.9% and 5.5% for self-storage REITs and REITs, overall, respectively), Cantor Fitzgerald said.