The grades of three Service stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

Outerwall Inc. (NASDAQ:OUTR) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. In Portfolio Grader’s specific subcategories of Earnings Surprise, Equity, and Cash Flow, OUTR also gets A’s. Outerwall provides automated retail solutions primarily in the United States, Canada, Puerto Rico, Ireland, and the United Kingdom. Shares of the stock have been trading at an exceptionally rapid pace, up 446.2% from the week prior. For more information, get Portfolio Grader’s complete analysis of OUTR stock.

StoneMor Partners (NYSE:STON) earns a B this week, jumping up from last week’s grade of C. StoneMor Partners owns and operates the assets and businesses previously owned and operated by Cornerstone Family Services. The stock price has increased 0.4% over the past week. The current dividend yield is 2.4%. For more information, get Portfolio Grader’s complete analysis of STON stock.

This week, Service Corporation International (NYSE:SCI) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). Service Corporation is a provider of deathcare products and services in North America. The stock has pushed up 3.8% over the past week. For more information, get Portfolio Grader’s complete analysis of SCI 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.