Top Losers

RetailMeNot (NASDAQ: SALE) fell 23.04% to $15.70 in pre-market trading after the company issued a weak Q4 revenue forecast and appointed Louis Agnese as interim CFO. Herbalife (NYSE: HLF) shares slipped 13.24% to $48.50 in pre-market trading after the company reported weaker-than-expected third-...

Nymox Pharmaceutical (NASDAQ: NYMX) shares tumbled 84.15% to $0.81 on failed NX-1207 trial. PhotoMedex (NASDAQ: PHMD) shares declined 13.97% to $3.30. PhotoMedex is expected to report Q3 financial results on November 6, 2014. American Realty Capital Properties (NASDAQ: ARCP) shares dropped 12.63%...

American Realty Capital Properties (NASDAQ: ARCP) fell 16.35% to $7.42 in pre-market trading after RCS Capital (NYSE: RCAP) terminated its agreement to acquire Cole Capital from Amer Realty Capital. Sears Holdings (NASDAQ: SHLD) shares declined 4.07% to $33.50 in pre-market trading after dropping 4...

Aegerion Pharmaceuticals (NASDAQ: AEGR) shares slipped 37.65% to $21.33 after the company reported a Q3 loss and lowered its FY14 revenue forecast. Regional Management (NYSE: RM) shares dipped 32.37% to $12.17 after the company reported Q3 results. Jefferies downgraded Regional Management from Buy...

Aegerion Pharmaceuticals (NASDAQ: AEGR) fell 32.18% to $23.20 in pre-market trading after the company reported a Q3 loss and lowered its FY14 revenue forecast. CommScope Holding Company (NASDAQ: COMM) shares slipped 7.53% to $21.50 in pre-market trading after the company issued a weak Q4 forecast...

Ceragon Networks (NASDAQ: CRNT) shares dipped 31.37% to $1.40 after the company reported weaker-than-expected quarterly results. Niska Gas Storage Partners LLC (NYSE: NKA) shares dropped 29.18% to $8.08 after the company reported downbeat quarterly results and issued an update on current business...

Glu Mobile (NASDAQ: GLUU) fell 16.56% to $3.78 in pre-market trading after the company reported downbeat Q3 revenue and issued a weak Q4 forecast. PAREXEL International (NASDAQ: PRXL) shares slipped 13.47% to $55.00 in pre-market trading on Q1 results. Baird downgraded PAREXEL from Outperform to...

Barrett Business Services (NASDAQ: BBSI) shares tumbled 31.13% to $30.62 on Q3 results. Barrett Business Services reported Q3 earnings of $1.35 per share on revenue of $900.20 million. InvenSense (NYSE: INVN) shares dropped 23.98% to $16.33. InvenSense reported Q2 earnings of $0.05 per share on...

American Realty Capital Properties (NASDAQ: ARCP) fell 15.59% to $10.45 in pre-market trading after the company announced non-reliance on previously issued financial statements and changes in accounting personnel. The company named Michael Sodo as CFO and Gavin Brandon as Chief Accounting Officer....

Amkor Technology (NASDAQ: AMKR) shares slipped 16.42% to $6.26 after the company reported weaker-than-expected Q3 results and issued a downbeat Q4 forecast. Twitter (NYSE: TWTR) shares declined 12.99% to $42.25. Twitter met Wall Street's earnings expectations. The company issued a weak revenue...

Twitter (NYSE: TWTR) fell 12.73% to $42.38 in pre-market trading. Twitter met Wall Street's earnings expectations. The company also issued a weak revenue forecast for the fourth quarter. In the latest period, Twitter's user base grew 23% to 284 million. Analysts at Nomura downgraded Twitter from...

Pain Therapeutics (NASDAQ: PTIE) shares dipped 60.72% to $1.63 after Pfizer (NYSE: PFE) announced that it will discontinue deal on REMOXY and Pain Therapeutics will regain full development and commercial rights to REMOXY. DURECT (NASDAQ: DRRX) shares fell 43.88% to $0.78 after Pfizer discontinued...

Sarepta Therapeutics (NASDAQ: SRPT) fell 32.51% to $15.90 in pre-market trading on the FDA requirement of additional data from Sarepta on Eteplirsen. GoPro (NASDAQ: GPRO) shares slipped 4.74% to $68.50 in pre-market trading after dropping 9.15% on Friday. Regulus Therapeutics (NASDAQ: RGLS)...

Education Management (NASDAQ: EDMC) shares dipped 47.83% to $0.60 after the company announced its intention to voluntarily delist shares from the NASDAQ. DryShips (NASDAQ: DRYS) shares fell 27% to $1.46 after the company priced 250 million shares of common stock at $1.40 per share. Hub Group (...

Amazon.com (NASDAQ: AMZN) fell 9.91% to $282.13 in pre-market trading after the company reported weaker-than-expected third-quarter results and issued a weak sales forecast for the holiday quarter. NPS Pharmaceuticals (NASDAQ: NPSP) shares slipped 6.46% to $27.20 in pre-market trading after the...