18 Biggest Mid-Day Losers For Friday

Black Box Corporation BBOX shares tumbled 42 percent to $4.32. Black Box reported Q1 operating loss of $0.33 per share on sales of $191.6 million.
EnteroMedics Inc ETRM shares declined 39.6 percent to $2.00. EnteroMedics reported commencement of Series B convertible preferred stock and warrant offering.
Luxoft Holding Inc LXFT shares dipped 28.8 percent to $43.35 after the company posted weaker-than-expected Q1 results. Wedbush downgraded Luxoft from Outperform to Neutral.
Andina Acquisition Corp TGLS shares fell 19.1 percent to $6.57. Tecnoglass reported Q2 adjusted earnings of $0.08 per share on sales of $81 million.
J C Penney Company Inc JCP shares dipped 16.2 percent to $3.94 after the company posted a wider-than-expected Q2 loss.
Root9B Holdings Inc RTNB shares fell 15.6 percent to $3.45.
Xenetic Biosciences Inc XBIO shares declined 13 percent to $2.68.
Snap Inc SNAP shares dropped 11.4 percent to $12.17 after the company reported a wider-than-expected loss for its second quarter. Snap added about 7 million daily active users during the quarter; Q2 total DAUs came in at 173 million, about 2 million short of estimates.
Eros International plc EROS shares declined 9.8 percent to $7.35 after the company disclosed Indian subsidiary results for the fiscal first quarter 2018.
CECO Environmental Corp. CECE dropped 7.2 percent to $7.55. William Blair downgraded CECO Environmental from Outperform to Market Perform.
Kingstone Companies Inc KINS shares fell 7.2 percent to $14.71 on weak quarterly earnings.
Aluminum Corp. of China Limited (ADR) ACH shares dropped 6.4 percent to $16.68 after tumbling 6.46 percent on Thursday.
Noodles & Co NDLS declined 6.2 percent to $3.66 after the company posted downbeat quarterly earnings.
Concordia International Corp CXRX fell 6.2 percent to $1.22. Concordia reported a Q2 loss of $19.78 per share on revenue of $160.785 million.
NVIDIA Corporation NVDA dropped 5.5 percent to $155.70. NVIDIA posted better-than-expected earnings for its second quarter.
Ascent Capital Group Inc ASCMA shares slipped 3.9 percent to $11.70. Imperial Capital downgraded Ascent Capital from Outperform to In-Line.
TPI Composites Inc TPIC dropped 3.4 percent to $21.05. JP Morgan downgraded TPI Composites from Overweight to Neutral.
Norwegian Cruise Line Holdings Ltd NCLH fell 3.1 percent to $55.33. Norwegian Cruise Line reported the launch of 15 million share common stock offering via selling holders.