This week, four financial services stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Steel Partners Holdings’ (SPLP) grade is moving up to a B (“buy”) this week from last week’s C (“hold”). Steel Partners Holdings is a global diversified holding company engaged in multiple businesses. In Portfolio Grader’s specific subcategory of Cash Flow, SPLP also gets an A. Shares of the stock have been trading at an exceptionally rapid pace, up threefold from the week prior. For more information, get Portfolio Grader’s complete analysis of SPLP stock.

McGraw Hill Financial, Inc. (MHFI) gets a higher grade this week, advancing from a C last week to a B. McGraw Hill Financial provides credit ratings, benchmarks, and analytics to capital and commodity markets worldwide. For more information, get Portfolio Grader’s complete analysis of MHFI stock.

Voya Financial, Inc. (VOYA) boosts its rating from a C to a B this week. For more information, get Portfolio Grader’s complete analysis of VOYA stock.

This week, Berkshire Hathaway Inc. Class B (BRK.B) is making solid headway. The company’s rating improves to an A (“strong buy”) from last week’s B (“buy”) rating. Berkshire Hathaway is a publicly owned investment manager that primarily engages in the insurance and reinsurance of property and casualty risks business. For more information, get Portfolio Grader’s complete analysis of BRK.B 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.