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

This week, Black Hills Corporation (BKH) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). Black Hills is a diversified energy company in the United States. In Portfolio Grader’s specific subcategories of Earnings Momentum and Margin Growth, BKH also gets A’s. The stock has pushed up 3.3% over the past week. Shares of the stock have been changing hands at an unusually rapid pace, four times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of BKH stock.

This week, DTE Energy Company’s (DTE) ratings are up from a B last week to an A. DTE Energy provides electricity and natural gas sales, distribution and storage services throughout southeastern Michigan. Shares of the stock have been trading at an exceptionally rapid pace, up fourfold from the week prior. The stock’s dividend yield is 2.6%. For more information, get Portfolio Grader’s complete analysis of DTE stock.

Public Service Enterprise Group Incorporated (PEG) is bumping up its rating from a C (“hold”) to a B (“buy”) this week. Public Service Enterprise Group is a public utility holding company. Shares of the stock have been changing hands at an unusually rapid pace, three times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of PEG stock.

CenterPoint Energy, Inc.’s (CNP) ratings are looking better this week, moving up to a B from last week’s C. CenterPoint Energy is a public utility holding company that operates electric transmission and distribution facilities, interstate pipelines, and facilities for gathering, processing, and treating natural gas. Shares of the stock have been trading at an exceptionally rapid pace, up twofold from the week prior. For more information, get Portfolio Grader’s complete analysis of CNP stock.

The rating of National Grid plc Sponsored ADR (NGG) moves up this week, rising from a C to a B. National Grid owns and operates the electricity transmission network in England and Wales, the gas transmission network in Great Britain, and electricity transmission networks in the Northeastern United States. The stock has moved up a slight 4.4% over the past week. The current dividend yield is 2.3%. For more information, get Portfolio Grader’s complete analysis of NGG 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.