For the current week, the overall ratings of three Restaurant and Resort stocks are worse, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Life Time Fitness (NYSE:LTM) falls to a D (“sell”), worse than last week’s grade of C (“hold”). Life Time Fitness operates sports, fitness, and recreation centers in Minnesota, Illinois, Michigan, Ohio, Indiana, Virginia, Arizona, and Texas. As of Oct. 25, 2012, 16.4% of outstanding Life Time Fitness shares were held short. For a full analysis of LTM stock, visit Portfolio Grader.

The rating of Tim Hortons (NYSE:THI) declines this week from a C to a D. Tim Hortons operates a chain of fast-food restaurants in North America. To get an in-depth look at THI, get Portfolio Grader’s complete analysis of THI stock.

Slipping from a C to a D rating, McDonald’s (NYSE:MCD) takes a hit this week. McDonald’s franchises and operates fast-food restaurants. The stock price has dropped 5.9% over the past month, worse than the 3.3% decrease the S&P 500 has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of MCD 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.