The grades of 3 Biotechnology stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

China Biologic Products, Inc. (CBPO) gets a higher grade this week, advancing from a C last week to a B. China Biologic Products, Inc. is a biopharmaceutical company that engages in the research, development, manufacture, and sale of human plasma-based biopharmaceutical products to hospitals and inoculation centers. The company also gets A’s in sales growth and return on equity. For more information, get Portfolio Grader’s complete analysis of CBPO stock.

Ironwood Pharmaceuticals, Inc. Class A (IRWD) boosts its rating from a C to a B this week. Ironwood Pharmaceuticals, Inc. Class A discovers, develops, manufactures, and commercializes marketed drugs. The company also gets A’s in sales growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of IRWD stock.

Galena Biopharma, Inc. (GALE) shows solid improvement this week. The company’s rating rises from a C to a B. Galena Biopharma, Inc. is a biopharmaceuticals company that develops late-stage oncology drugs. For more information, get Portfolio Grader’s complete analysis of GALE 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.