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

National Bank of Greece’s (NYSE:NBG) rating falls to a D (“sell”) this week, down from C (“hold”) the week prior. National Bank of Greece offers retail and corporate banking services. The stock also earns F’s in Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Momentum, Cash Flow, and Sales Growth. For more information, get Portfolio Grader’s complete analysis of NBG stock.

The rating of Pinnacle Financial Partners (NASDAQ:PNFP) declines this week from C to a D. Pinnacle Financial Partners is a holding company for Pinnacle National Bank. The stock also gets an F in Earnings Momentum. To get an in-depth look at PNFP, get Portfolio Grader’s complete analysis of PNFP stock.

Suffolk Bancorp (NASDAQ:SUBK) earns a D this week, falling from last week’s grade of C. Suffolk Bancorp is a bank holding company for Suffolk County National Bank, which provides commercial banking services to its customers in Suffolk County. The stock gets F’s in Earnings Growth, Earnings Momentum, Margin Growth, and Sales Growth. For a full analysis of SUBK stock, visit Portfolio Grader.

KeyCorp (NYSE:KEY) earns a D this week, moving down from last week’s grade of C. KeyCorp provides a wide range of retail and commercial banking, commercial leasing, investment management, consumer finance and investment banking products and services to individual, corporate and institutional clients. For more information, get Portfolio Grader’s complete analysis of KEY 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.