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

Applied Micro Circuits Corporation (AMCC) provides semiconductor solutions for the enterprise, telecom and consumer/small medium business (SMB) markets. AMCC gets F’s in Earnings Momentum, Equity and Sales Growth as well. For more information, get Portfolio Grader’s complete analysis of AMCC stock.

Procera Networks, Inc. (PKT) develops and markets hardware and software which can be applied to a range of data switching and management applications. PKT gets F’s in Earnings Momentum, Equity, Cash Flow and Sales Growth as well. For more information, get Portfolio Grader’s complete analysis of PKT stock.

International Shipholding Corporation (ISH) operates a diversified fleet of vessels that provide maritime transportation service to commercial and governmental customers. ISH also gets F’s in Earnings Momentum, Cash Flow and Sales Growth. For more information, get Portfolio Grader’s complete analysis of ISH stock.

Martha Stewart Living Omnimedia, Inc. (MSO) creates original how-to content and related products for homemakers and other consumers. MSO also gets an F in Sales Growth. For more information, get Portfolio Grader’s complete analysis of MSO stock.

Imperial Holdings, Inc. (IFT) is a specialty finance company with a focus on providing financing for individual life insurance policies and purchasing structured settlements. IFT also gets F’s in Earnings Growth, Earnings Momentum, Operating Margin Growth and Sales Growth. The stock currently has a trailing PE Ratio of 87.00. For more information, get Portfolio Grader’s complete analysis of IFT 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.