This week, these five stocks have the best ratings in Earnings Revisions, one of the eight Fundamental Categories on Portfolio Grader.

BlackBerry Limited (BBRY) engages in the design, manufacture and marketing of wireless solutions worldwide. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of BBRY stock.

Avino Silver & Gold Mines Ltd. (ASM) engages in the acquisition, exploration, and development of mineral properties in Canada and Mexico. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of ASM stock.

LMI Aerospace, Inc. (LMIA) fabricates, machines, finishes, and integrates formed, close tolerance aluminum and specialty alloy components for use by the aerospace industry. The company also gets A’s in operating margin growth, earnings growth, and earnings revisions. For more information, get Portfolio Grader’s complete analysis of LMIA stock.

HudBay Minerals Inc. (HBM) is a mining company that mines and produces zinc, copper, gold, and silver. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of HBM stock.

ArcelorMittal SA ADR (MT) produces steel. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of MT stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.