This week, these ten stocks, all currently earning A’s (“strong buy”) on Portfolio Grader, have the best year-to-date performance. Since the beginning of the year, the Nasdaq is up 10.9%, the Dow increased 13.2%, and the S&P has risen 12.1%.

Since the first of the year, the price of Linkedin Corporation Class A (NYSE:LNKD) has swelled 102.5%. LinkedIn operates a social networking website used for professional networking. For more information, get Portfolio Grader’s complete analysis of LNKD stock.

Since January 1, Tyler Technologies, Inc. (NYSE:TYL) has climbed 103.7%. Tyler Technologies provides integrated software systems and related services for local-government entities such as counties and schools. For more information, get Portfolio Grader’s complete analysis of TYL stock.

Since January 1, the price of Pharmacyclics, Inc. (NASDAQ:PCYC) has grown 105.6%. Pharmacyclics is a pharmaceutical company developing products to improve upon current therapeutic approaches to cancer, atherosclerosis, and retinal disease. For more information, get Portfolio Grader’s complete analysis of PCYC stock.

Shares of Conn’s, Inc. (NASDAQ:CONN) have leapt 108.6% since January 1. Conn’s is a specialty retailer of home appliances and consumer electronics. For more information, get Portfolio Grader’s complete analysis of CONN stock.

Since the first of the year, shares of Multimedia Games Holding Company, Inc. (NASDAQ:MGAM) have soared 113.4%. Multimedia Games designs, manufactures and supplies stand alone and networked gaming systems. Trade volume rose notably over the past week, up 131%. For more information, get Portfolio Grader’s complete analysis of MGAM stock.

Since January 1, Lions Gate Entertainment (NYSE:LGF) has shot up 117.8%. Lions Gate Entertainment develops, produces, and distributes filmed entertainment content. For more information, get Portfolio Grader’s complete analysis of LGF stock.

Since January 1, FleetCor Technologies, Inc. (NYSE:FLT) has jumped 122.6%. FleetCor Technologies is an independent global provider of specialized payment products and services to commercial fleets, major oil companies and petroleum marketers. For more information, get Portfolio Grader’s complete analysis of FLT stock.

Shares of Lumber Liquidators Holdings, Inc. (NYSE:LL) have risen 131.8% since January 1. Lumber Liquidators retails hardwood flooring in the United States. For more information, get Portfolio Grader’s complete analysis of LL stock.

The price of Santarus, Inc. (NASDAQ:SNTS) is up 186.6% since the first of the year. Santarus is a specialty pharmaceutical company focused on acquiring, developing and commercializing proprietary products that address the needs of patients treated by gastroenterologists and other targeted physicians. For more information, get Portfolio Grader’s complete analysis of SNTS stock.

The price of Himax Technologies, Inc. Sponsored ADR (NASDAQ:HIMX) has seen a 283.3% boost since the first of the year. Himax Technologies designs and manufactures integrated circuits. For more information, get Portfolio Grader’s complete analysis of HIMX 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.