3 Semiconductors & Semiconductor Equipment 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”).

Xilinx, Inc. (XLNX) shows solid improvement this week. The company’s rating rises from a C to a B. Xilinx, Inc. designs, develops and markets programmable platforms and predefined system functions delivered as intellectual property cores. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of XLNX stock.

Nova Measuring Instruments Ltd (NVMI) earns a B this week, jumping up from last week’s grade of C. Nova Measuring Instruments Ltd develops, produces, and markets monitoring and measurement systems for the semiconductor manufacturing industry. The company also gets A’s in sales growth, earnings surprise, earnings momentum, and free cash flow. For more information, get Portfolio Grader’s complete analysis of NVMI stock.

AXT, Inc. (AXTI) is seeing ratings go up from a B last week to a A this week. AXT, Inc. designs, develops, manufactures, and distributes compound and single element semiconductor substrates for use in wireless communications, lighting display applications, and fiber optic communications. For more information, get Portfolio Grader’s complete analysis of AXTI 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.