This week, the ratings of three capital markets stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Affiliated Managers Group, Inc. (AMG) falls to a D (“sell”), worse than last week’s grade of C (“hold”). Affiliated Managers operates as an asset management company providing investment management services to mutual funds, institutional clients, and high net worth individuals in the United States. The stock has a trailing PE Ratio of 30.40. For more information, get Portfolio Grader’s complete analysis of AMG stock.

This week, GFI Group’s (GFIG) rating worsens to a D from the company’s C rating a week ago. GFI Group provides brokerage services and data and analytics products to institutional clients. The stock also gets an F in Earnings Revisions. To get an in-depth look at GFIG, get Portfolio Grader’s complete analysis of GFIG stock.

Slipping from a C to a D rating, Medallion Financial (TAXI) takes a hit this week. Medallion Financial is a specialty finance company that originates and services loans financing the purchase of taxicab medallions and related assets. The stock also rates an F in Earnings Surprise. For more information, get Portfolio Grader’s complete analysis of TAXI 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.