Morning Market Losers

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 (NASDAQ: INVN) shares dropped 23.98% to $16.33. InvenSense reported Q2 earnings of $0.05 per share on revenue of $90.20 million. Pacific Crest downgraded InvenSense from Outperform to Sector Perform.American Realty Capital Properties (NASDAQ: ARCP) shares slipped 20.84% to $9.80 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.Xoom (NASDAQ: XOOM) shares declined 19.70% to $15.62. XOOM reported Q3 earnings of $0.08 per share on revenue of $39.4 million. Xoom also announced the resignation of CFO Ryno Blignaut.Orbital Sciences (NYSE: ORB) shares slipped 14.06% to $26.10 as unmanned Antares rocket exploded on launch.Aspen Technology (NASDAQ: AZPN) shares fell 12.92% to $35.12 on Q1 results.Epiq Systems (NASDAQ: EPIQ) shares declined 12% to $17.23 on downbeat quarterly results.Applied Micro Circuits (NASDAQ: AMCC) shares dropped 8.72% to $6.28 after the company reported downbeat quarterly results.Facebook (NASDAQ: FB) shares declined 5.74% to $76.13. Facebook reported better-than-expected third-quarter earnings. The company also reported that its monthly active users rose to 1.35 billion from 1.19 billion in the year-ago period. Facebook's COO Sheryl Sandberg said the Q4 will be a more difficult comparison. The company also said it projected Q4 sales growth in the range of 40% to 47%.