This week, these five stocks have the best ratings in Earnings Revisions, one of the eight Fundamental Categories on Portfolio Grader.

Southwestern Energy Company (SWN) is an independent company mainly engaged in natural gas and crude oil exploration, development and production within the United States. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SWN stock.

Kulicke & Soffa Industries, Inc. (KLIC) designs, manufactures, and markets capital equipment, related spare parts, and packaging materials used to assemble semiconductor devices. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of KLIC stock.

Casella Waste Systems, Inc. Class A (CWST) provides resource management expertise and services related to solid waste collection, transfer, disposal, and recycling to residential, commercial, municipal, and industrial customers. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CWST stock.

Advantage Oil & Gas Ltd. (AAV) is actively engaged in the business of oil and gas exploitation, development, acquisition and production. The company also gets A’s in earnings growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AAV stock.

Resolute Energy Corporation (REN) explores for and produces oil and natural gas in the southern and western United States. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of REN 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.