Analysts’ upgrades for Thursday, August 17th:

Banco Bradesco SA (NYSE:BBDO) was upgraded by analysts at ValuEngine from a buy rating to a strong-buy rating.

Choice Hotels International (NYSE:CHH) was upgraded by analysts at BidaskClub from a buy rating to a strong-buy rating.

Empresa Nacional de Electricidad (NYSE:EOCC) was upgraded by analysts at ValuEngine from a hold rating to a buy rating.

First Keystone Corp. (OTCMKTSBB:FKYS) was upgraded by analysts at ValuEngine from a hold rating to a buy rating.

Global Blood Therapeutics (NASDAQ:GBT) was upgraded by analysts at BidaskClub from a sell rating to a hold rating.

Glen Burnie Bancorp (NASDAQ:GLBZ) was upgraded by analysts at ValuEngine from a hold rating to a buy rating.

Gogo (NASDAQ:GOGO) was upgraded by analysts at BidaskClub from a hold rating to a buy rating.

Iamgold Corporation (NYSE:IAG) (TSE:IMG) was upgraded by analysts at ValuEngine from a sell rating to a hold rating.

J.B. Hunt Transport Services (NASDAQ:JBHT) was upgraded by analysts at BidaskClub from a sell rating to a hold rating.

Nektar Therapeutics (NASDAQ:NKTR) was upgraded by analysts at BidaskClub from a sell rating to a hold rating.

Palo Alto Networks (NYSE:PANW) was upgraded by analysts at BidaskClub from a strong sell rating to a sell rating.

Photronics (NASDAQ:PLAB) was upgraded by analysts at Zacks Investment Research from a sell rating to a hold rating. According to Zacks, “Photronics is a leading worldwide manufacturer of photomasks. Photomasks are high precision quartz plates that contain microscopic images of electronic circuits. A key element in the manufacture of semiconductors and flat panel displays, photomasks are used to transfer circuit patterns onto semiconductor wafers and flat panel substrates during the fabrication of integrated circuits, a variety of flat panel displays and, to a lesser extent, other types of electrical and optical components. They are produced in accordance with product designs provided by customers at strategically located manufacturing facilities in Asia, Europe, and North America. “

Petroquest Energy (NYSE:PQ) was upgraded by analysts at Zacks Investment Research from a sell rating to a hold rating. According to Zacks, “PetroQuest Energy, Inc. is an oil and gas exploration and production company primarily focused on growing its reserves and shareholder value through a combination of drilling development locations and high potential exploration prospects along and in the Gulf of Mexico. “

Transocean (NYSE:RIG) was upgraded by analysts at ValuEngine from a hold rating to a buy rating.

Spring Bank Pharmaceuticals (NASDAQ:SBPH) was upgraded by analysts at ValuEngine from a sell rating to a hold rating.

YPF Sociedad Anonima (NYSE:YPF) was upgraded by analysts at ValuEngine from a sell rating to a hold rating.

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