4 Construction Materials stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Martin Marietta Materials, Inc. (MLM) earns a B this week, jumping up from last week’s grade of C. Martin Marietta Materials, Inc. produces aggregates for the construction industry, including highways, infrastructure, commercial, and residential. The company also gets A’s in operating margin growth and earnings growth. For more information, get Portfolio Grader’s complete analysis of MLM stock.

Vulcan Materials Company’s (VMC) ratings are looking better this week, moving up to a B from last week’s C. Vulcan Materials Company produces construction aggregates. The company also gets A’s in operating margin growth and earnings growth. For more information, get Portfolio Grader’s complete analysis of VMC stock.

This week, Eagle Materials Inc.’s (EXP) ratings are up from a C last week to a B. Eagle Materials Inc. is a diversified producer of basic building materials and construction products used in residential, industrial, commercial and infrastructure construction. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of EXP stock.

Cemex SAB de CV Sponsored ADR (CX) improves from a C to a B rating this week. Cemex SAB de CV Sponsored ADR engages in the production, marketing, distribution, and sale of cement, ready-mix concrete, aggregates, and other construction materials worldwide. The company also gets A’s in earnings growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CX 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.