Benzinga's Top Upgrades - HealthStream (NASDAQ:HSTM), Cboe Global Markets (BATS:CBOE)

Baird upgraded Mid-America Apartment Communities Inc MAA from Neutral to Outperform. Mid-America Apartment shares fell 2.98 percent to close at $88.90 on Thursday.
Bank of America upgraded J C Penney Company Inc JCP from Neutral to Buy. JC Penney shares rose 2.83 percent to $9.80 in pre-market trading.
RBC Capital upgraded Sunoco Logistics Partners L.P. SXL from Sector Perform to Outperform. Sunoco Logistics Partners shares rose 2.13 percent to $23.00 in pre-market trading.
Baird upgraded Atlassian Corporation PLC TEAM from Neutral to Outperform. Atlassian shares rose 1.45 percent to $26.50 in pre-market trading.
Analysts at JP Morgan upgraded CBOE Holdings, Inc CBOE from Neutral to Overweight. The price target for CBOE Holdings has been raised from $78 to $84. CBOE Holdings shares gained 0.84 percent to close at $69.48 on Thursday.
Analysts at Deutsche Bank upgraded Square Inc SQ from Hold to Buy. The price target for Square has been raised from $13 to $17. Square shares rose 2.60 percent to $13.04 in pre-market trading.
Analysts at Baird upgraded HealthStream, Inc. HSTM from Neutral to Outperform. HealthStream shares dropped 3.27 percent to close at $24.24 on Thursday.
Analysts at Longbow Research upgraded Valvoline Inc VVV from Neutral to Buy. Valvoline shares fell 3.16 percent to close at $20.28 on Thursday.