The grades of 4 Capital Markets 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.

Piper Jaffray Companies (PJC) earns a B this week, jumping up from last week’s grade of C. Piper Jaffray Companies provides investment advice and services to businesses, institutions, and individuals. The company also gets A’s in earnings revisions, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PJC stock.

INTL FCStone Inc. (INTL) shows solid improvement this week. The company’s rating rises from a B to a A. INTL FCStone Inc. is a financial services holding company. The company also gets A’s in operating margin growth, earnings revisions, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of INTL stock.

B. Riley Financial, Inc. (RILY) boosts its rating from a D to a B this week. For more information, get Portfolio Grader’s complete analysis of RILY stock.

National Holdings Corporation (NHLD) improves from a C to a B rating this week. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of NHLD 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.