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

This week, Noodles & Co. Class A (NDLS) falls to a D (“sell”), worse than last week’s grade of C (“hold”). As of April 30, 2015, 15.7% of outstanding Noodles & Co. Class A shares were held short. The stock currently has a trailing PE Ratio of 54.30. To get an in-depth look at NDLS, get Portfolio Grader’s complete analysis of NDLS stock.

Wynn Resorts, Limited (WYNN) earns an F (“strong sell”) this week, moving down from last week’s grade of D (“sell”). Wynn Resorts owns and operates destination casino resorts. The stock gets F’s in Earnings Revisions and Earnings Surprise. Shares of the stock are changing hands at twice the rate they were a week ago. For more information, get Portfolio Grader’s complete analysis of WYNN stock.

The rating of MGM Resorts (MGM) declines this week from a D to an F. MGM Resorts International operates gaming, hospitality and entertainment resorts. The stock gets F’s in Earnings Momentum, Earnings Revisions and Earnings Surprise. To get an in-depth look at MGM, get Portfolio Grader’s complete analysis of MGM stock.

Las Vegas Sands (LVS) gets weaker ratings this week as last week’s D drops to an F. Las Vegas Sands owns and operates casino resorts and convention centers. The stock also rates an F in Earnings Revisions. For more information, get Portfolio Grader’s complete analysis of LVS 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.