The overall ratings of three durable goods stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Toll Brothers, Inc. (TOL) falls to a D (“sell”), worse than last week’s grade of C (“hold”). Toll Brothers is engaged in the design and construction of single-family detached and attached luxury homes. For more information, get Portfolio Grader’s complete analysis of TOL stock.

This week, GoPro Inc Class A (GPRO) drops from a C to a D rating. Gen Probe develops, manufactures, and commercializes diagnostic products based on its genetic probe technologies. The stock also rates an F in Earnings Momentum. Shares of the stock have been changing hands at an unusually rapid pace, twice the rate of the week prior. The stock currently has a trailing PE Ratio of 31.00. To get an in-depth look at GPRO, get Portfolio Grader’s complete analysis of GPRO stock.

This is a rough week for LaZBoy Incorporated (LZB). The company’s rating falls to D from the previous week’s C. La-Z-Boy manufactures residential and office upholstered furniture. The stock also gets an F in Earnings Surprise. For more information, get Portfolio Grader’s complete analysis of LZB 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.