This week, the overall grades of five restaurant and resort stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

DineEquity, Inc. (DIN) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. DineEquity owns and operates two casual-dining family restaurant concepts. In Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Momentum and Sales Growth, DIN also gets an F. The stock price has fallen 5.6% over the past month, worse than the 1.7% decrease the S&P 500 has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of DIN stock.

Royal Caribbean Cruises’ (RCL) rating weakens this week, dropping to a D versus last week’s C. Royal Caribbean Cruises owns five brands in the cruise vacation industry. The stock also gets an F in Margin Growth. To get an in-depth look at RCL, get Portfolio Grader’s complete analysis of RCL stock.

International Game Technology (IGT) ratings are on the decline this week as the company earns an F (“strong sell”). Last week, it received a D (“sell”). International Game Technology designs and manufactures computerized casino gaming systems. The stock also rates an F in Earnings Surprise. Investors seem to agree with the downgrade and have pushed down the share price 17.3% over the past month. For a full analysis of IGT stock, visit Portfolio Grader.

The rating of Panera Bread Company Class A (PNRA) declines this week from a C to a D. Panera Bread owns and franchises bakery cafes. Wall Street appears to agree with the stock downgrade, with share prices dropping 5.8% over the past month. To get an in-depth look at PNRA, get Portfolio Grader’s complete analysis of PNRA stock.

Life Time Fitness, Inc. (LTM) is having a tough week. The company’s rating falls from a D to an F. Life Time Fitness operates sports, fitness, and recreation centers in Minnesota, Illinois, Michigan, Ohio, Indiana, Virginia, Arizona, and Texas. The stock price has fallen 11% over the past month. As of Jan. 30, 2014, 17.5% of outstanding Life Time Fitness, Inc. shares were held short. For a full analysis of LTM stock, visit Portfolio Grader.

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.