12 Biggest Mid-Day Losers For Monday

PTC Therapeutics, Inc. PTCT shares dropped 32 percent to $9.02 after the company reported a regulatory update on Translarna for nonsense mutation DMD.
Skypeople Fruit Juice Inc SPU shares dropped 18.9 percent to $6.21 after declining 3.04 percent on Friday.
Opus Bank OPB dropped 18.4 percent to $28.12 after the company announced a $0.59 loan charge-offs. Opus Bank now projects a Q3 loss of $0.05 per share.
InspireMD Inc NSPR shares fell 15 percent to $2.25 after the company reported the online publication of clinical data in a new independent study in the Journal of Endovascular Therapy.
Stone Energy Corporation SGY shares declined 13.2 percent to $9.26. Barclays downgrades Stone Energy from Equal-Weight to Underweight
Corenergy Infrastructure Trust Inc CORR dropped 11 percent to $25.77. RBC Capital downgraded CorEnergy Infrastructure Trust from Sector Perform to Underperform.
Sterling Construction Company, Inc. STRL declined 8.9 percent to $7.64. DA Davidson downgrades Sterling Construction from Buy to Neutral
Pearson PLC (ADR) PSO shares fell 8.2 percent to $9.27 following today's management statement that sales are down 7 percent year-over-year for the 9 months ending September 30th.
W&T Offshore, Inc. WTI dropped 6.8 percent to $1.45. Barclays downgraded W&T Offshore from Equal-Weight to Underweight and lowered the price target from $2.00 to $1.00.
Waddell & Reed Financial, Inc. WDR declined 3.2 percent to $16.89. Citigroup downgraded Waddell & Reed from Neutral to Sell.
Pandora Media Inc P shares slipped 3.1 percent to $6.21. Bank of America downgraded Pandora from Neutral to Underperform.
Marathon Oil Corporation MRO fell around 3 percent to $14.16. Barclays downgraded Marathon Oil from Overweight to Equal-Weight.