This week, 5 Aerospace & Defense stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

United Technologies Corporation (UTX) boosts its rating from a C to a B this week. United Technologies Corporation provides technology products and services to building systems and aerospace industries. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of UTX stock.

This is a strong week for AAR CORP. (AIR). The company’s rating climbs to B from the previous week’s C. AAR CORP. provides products and services to the worldwide aviation and defense industries. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of AIR stock.

This week, Vectrus Inc’s (VEC) ratings are up from a C last week to a B. The company also gets A’s in operating margin growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of VEC stock.

KEYW Holding Corporation (KEYW) earns a B this week, jumping up from last week’s grade of C. KEYW Holding Corporation provides mission-critical cybersecurity and cyber superiority solutions to defense, intelligence and national security agencies. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of KEYW stock.

Innovative Solutions and Support, Inc.’s (ISSC) ratings are looking better this week, moving up to a B from last week’s C. Innovative Solutions and Support, Inc. designs, manufactures, and sells flight information computers, electronic displays, and advanced monitoring systems to the military and government, commercial air transport, and corporate aviation markets. The company also gets A’s in sales growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of ISSC 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.