Alcoa Inc (NYSE:AA), which reports Tuesday evening, kicks off the earnings season. The shorts, however, do not appear to be bracing for a bad report, with short interest down 34% since early February. Alcoa Inc (NYSE:AA) stock performance was -0.86% in last session and finished the day at $12.63. Traded volume was 16.41million shares in the last session and the average volume of the stock remained 29.17million shares. The beta of the stock remained 1.82. Alcoa Inc (NYSE:AA) insider ownership is 0.20%.

Block trading activities for shares of Arch Coal Inc (NYSE:ACI) reveal that 36 block trades were executed during the market session. Arch Coal, Inc (NYSE:ACI) is a coal producer in the United States, which sells coal to power plants, steel mills and industrial facilities. Arch Coal Inc (NYSE:ACI) rose 3.08 percent to $5.02 Friday on volume of 9.66million shares. The intra-day range of the stock was $4.90 to $5.19. Arch Coal Inc (NYSE:ACI) has a market capitalization of $1.07billion.

State-run oil company Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) said on Friday it started production at a well in its off-shore Sapinhoa oilfield. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) said the 7-SPH-04-SPS well has the potential to produce 26,000 barrels of oil per day and its connected to the Cidade de Sao Paulo floating production storage and offloading facility (FPSO). Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR)’s stock on Apr 04, 2014 reported a increase of 1.29% to the closing price of $13.31. Its fifty two weeks range is $10.20-$19.65. The total market capitalization recorded $86.81billion. The overall volume in the last trading session was 26.56million shares. In its share capital, PBR has 6.69billion outstanding shares.

Peabody Energy Corporation (NYSE:BTU) was upgraded by equities researchers at Cowen & Company to an “outperform” rating in a research report issued on Friday, AmericanBankingNews.com reports. On Friday, shares of Peabody Energy Corporation (NYSE:BTU) advanced 2.87% to close the day at $17.22. Company return on investment (ROI) is 1.20% and its monthly performance is recorded as -2.33%. Peabody Energy Corporation (NYSE:BTU) quarterly revenue growth is -7.82%.