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

Royal Caribbean Cruises (NYSE:RCL) owns five brands in the cruise vacation industry. RCL also gets an F in Earnings Growth. For more information, get Portfolio Grader’s complete analysis of RCL stock.

Citizens Inc. (NYSE:CIA) provides life and health insurance products, including ordinary whole-life policies and endowment policies. CIA gets F’s in Earnings Growth, Analyst Earnings Revisions, and Operating Margin Growth as well. Since January 1, CIA has fallen 2.3%. This is worse than the S&P 500, which has seen a 11.8% increase over the same period. The stock currently has a trailing PE Ratio of 89.2. For more information, get Portfolio Grader’s complete analysis of CIA stock.

Northwest Natural Gas (NYSE:NWN) distributes natural gas to customers in western Oregon, as well as portions of Washington. NWN also gets an F in Sales Growth. For more information, get Portfolio Grader’s complete analysis of NWN stock.

Dawson Geophysical (NASDAQ:DWSN) provides onshore seismic data acquisition and processing services in the United States. DWSN gets F’s in Earnings Momentum and Analyst Earnings Revisions as well. Since January 1, DWSN has fallen 43.1%. For more information, get Portfolio Grader’s complete analysis of DWSN stock.

Insteel Industries (NASDAQ:IIIN) manufactures and markets wire products. IIIN also gets F’s in Earnings Growth, Earnings Momentum, and Analyst Earnings Revisions. Shares of the stock have declined 10.9% since January 1. The stock’s trailing PE Ratio is 93.2. For more information, get Portfolio Grader’s complete analysis of IIIN 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.