Equities Research Analysts’ downgrades for Friday, September 15th:

American Airlines Group (NASDAQ:AAL) was downgraded by analysts at J P Morgan Chase & Co from an overweight rating to a neutral rating.

Acuity Brands (NYSE:AYI) was downgraded by analysts at Wells Fargo & Company from an outperform rating to a market perform rating.

Carnival Corporation (NYSE:CCL) was downgraded by analysts at Credit Suisse Group from an outperform rating to a neutral rating.

Ferrovial Sa (NASDAQ:FRRVY) was downgraded by analysts at Royal Bank Of Canada from an outperform rating to a sector perform rating.

Regency Centers Corporation (NYSE:REG) was downgraded by analysts at Jefferies Group LLC from a buy rating to a hold rating.

Retail Opportunity Investments Corp. (NASDAQ:ROIC) was downgraded by analysts at Jefferies Group LLC from a buy rating to a hold rating. The firm currently has $21.00 price target on the stock.

Ramco-Gershenson Properties Trust (NYSE:RPT) was downgraded by analysts at Jefferies Group LLC from a buy rating to a hold rating.

Revance Therapeutics (NASDAQ:RVNC) was downgraded by analysts at Zacks Investment Research from a buy rating to a hold rating. According to Zacks, “Revance is a Silicon Valley-based biotechnology company. The company is developing a portfolio of products for aesthetic medicine and underserved therapeutic specialties, including dermatology and neurology. Revance’s science is based upon a proprietary TransMTS┬« peptide technology, which when combined with active drug molecules, may help address current unmet needs. Revance’s initial focus is on developing daxibotulinumtoxinA, the company’s highly purified botulinum toxin, for a broad spectrum of aesthetic and therapeutic indications, including facial wrinkles and muscle movement disorders. The company’s lead drug candidate, DaxibotulinumtoxinA for Injection (RT002), is currently in development for the treatment of glabellar lines and cervical dystonia and has the potential to be the first long-acting neurotoxin. The company holds worldwide rights for all indications of RT002 injectable and RT001 topical and the pharmaceutical uses of the TransMTS technology platform. “

Spirit Airlines (NASDAQ:SAVE) was downgraded by analysts at J P Morgan Chase & Co from an overweight rating to a neutral rating.

Sigma Designs (NASDAQ:SIGM) was downgraded by analysts at Zacks Investment Research from a hold rating to a sell rating. According to Zacks, “Sigma Designs, Inc designs, manufactures (using subcontractors) and markets multimedia products for use with personal computers. Through their REALmagic product line incorporating Moving Picture Experts Group (MPEG) technology, they has become a leader in this emerging market. “

Summit Financial Group (NASDAQ:SMMF) was downgraded by analysts at Zacks Investment Research from a buy rating to a hold rating. According to Zacks, “Summit Financial Group operates thirteen banking locations through its three wholly owned subsidiary banks, Summit Community Bank headquartered in Moorefield, West Virginia, Capital State Bank, Inc. headquartered in Charleston, West Virginia, and Shenandoah Valley National Bank in Winchester, Virginia. Summit also operates Summit Financial, LLC, a residential mortgage loan originator located in Herndon, Virginia. “

Senestech (NASDAQ:SNES) was downgraded by analysts at Zacks Investment Research from a hold rating to a sell rating. According to Zacks, “SenesTech, Inc. developed technology for managing animal pest populations through fertility control as opposed to a lethal approach. The Company’s fertility control product candidate, ContraPest(R), will be marketed for use initially in controlling rat infestations. SenesTech, Inc. is based in Flagstaff, Arizona. “

SUNNY OPTICAL TECH HKD0.10 (NASDAQ:SNPTF) was downgraded by analysts at Zacks Investment Research from a buy rating to a hold rating. According to Zacks, “Sunny Optical Technology Group Co., Limited is engaged in the design, research and development, manufacture and sales of optical and optical-related products. Optical components product includes glass spherical and aspherical lenses, plane products, handset lens sets, vehicle lens sets and other various lens sets. Optoelectronic products includes handset camera modules, three-dimensional optoelectronic products, security cameras and other optoelectronic modules and optical instruments includes microscopes, optical measuring instruments and various high-end optical analytical instrument. Sunny Optical Technology Group Co., Limited is based in Yuyao, the People’s Republic of China. “

United Continental Holdings (NYSE:UAL) was downgraded by analysts at J P Morgan Chase & Co from an overweight rating to a neutral rating.

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