On Oct. 17, The Mexican unit of Wal-Mart Stores Inc. (NYSE:WMT) said on Friday its chief executive planned to step down next year, as Wal-Mart struggles to boost sales and customer traffic in one of its largest international markets. Wal-Mart Stores Inc. (NYSE:WMT) belongs to Services sector. Its net profit margin is 3.30% and weekly performance is -3.12%. On last trading day company shares ended up $75.14. Wal-Mart Stores Inc. (NYSE:WMT) distance from 50-day simple moving average (SMA50) is -1.13%.

Shares of protective equipment maker Alpha Pro Tech Ltd. (NYSEMKT:APT) plummeted on Monday after a Dallas judge confirmed 43 people who came into contact with Ebola patient Thomas Eric Duncan had been officially cleared after 21 days without symptoms. Alpha Pro Tech Ltd. (NYSEMKT:APT) shares decreased -20.18% in last trading session and ended the day at $4.43. APT Gross Margin is 36.60% and its return on assets is 7.30%. Alpha Pro Tech Ltd. (NYSEMKT:APT) quarterly performance is 111.96%.

Elsevier, is part of Reed Elsevier NV (NYSE:ENL), announced the publication of four new books on natural disasters and hazards, including three from the newly developed Hazards and Disasters series edited by Dr. John F. Shroder. On 20 October, Reed Elsevier NV (NYSE:ENL) shares moved up 0.70% and was closed at $43.22. ENL EPS growth in last 5 year was 16.10%. Reed Elsevier NV (NYSE:ENL) year to date (YTD) performance is 3.82%.

Jim Chanos, known for wagering against stocks he expects to decline, recommended betting against Brazilian state-controlled oil company Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR), according to two people with knowledge of the matter. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) ended the last trading day at $14.00. Company weekly volatility is calculated as 5.28% and price to cash ratio as 3.07. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) showed a weekly performance of -18.93%.