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

Noodles & Co. Class A (NDLS) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. As of July 2, 2015, 12.8% of outstanding Noodles & Co. Class A shares were held short. The trailing PE Ratio for the stock is 63.50. 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 have been changing hands at an unusually rapid pace, three times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of WYNN stock.

The rating of MGM Resorts (MGM) slips 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.

This week, Las Vegas Sands (LVS) drops from a D to an F rating. Las Vegas Sands owns and operates casino resorts and convention centers. The stock also gets an F in Earnings Revisions. Shares of the stock have been changing hands at an unusually rapid pace, up 551.8% from the week prior. 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.