10 Biggest Mid-Day Losers For Tuesday

Walter Investment Management Corp WAC shares tumbled 19.4 percent to $1.12.
Editas Medicine Inc EDIT shares fell 13.3 percent to $13.55.
Seadrill Ltd SDRL shares declined 13 percent to $0.455.
Sibanye Gold Ltd (ADR) SBGL shares dropped 10 percent to $4.97 after declining 2.82 percent on Friday.
Ovid Therapeutics Inc OVID dipped 8 percent to $13.32. William Blair and Cowen initiated coverage on Ovid Therapeutics with an Outperform rating.
Whiting Petroleum Corp WLL shares declined 7.8 percent to $7.35. Goldman Sachs downgraded Whiting Petroleum from Neutral to Sell.
Ambarella Inc AMBA dropped 6.3 percent to $60.98. Pacific Crest downgraded Ambarella from Overweight to Sector Weight.
Harmony Gold Mining Co. (ADR) HMY shares fell 4 percent to $2.05 after dropping 1.39 percent on Friday.
Buffalo Wild Wings BWLD declined 3.8 percent to $145.32. Wedbush downgraded Buffalo Wild Wings from Neutral to Underperform.
BlackBerry Ltd BBRY shares slipped 3.8 percent to $10.69. Raymond James downgraded BlackBerry from Outperform to Market Perform.