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”). In Portfolio Grader’s specific subcategory of Cash Flow, SPLP also gets an A. Steel Partners Holdings is a global diversified holding company engaged in multiple businesses. For more information, get Portfolio Grader’s complete analysis of SPLP stock.

This is a strong week for McGraw Hill Financial, Inc. (MHFI). The company’s rating climbs to B from the previous week’s C. 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) is seeing ratings go up from a C last week to a B this week. For more information, get Portfolio Grader’s complete analysis of VOYA stock.

Berkshire Hathaway Inc. Class B (BRK.B) is progressing from last week’s rating of B (“buy”) as the company improves to an A (“strong buy”) this week. 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.