Steven B. Achelis is the founder of Equis International, Inc., a leading provider of investment analysis, portfolio management, and stock market data collection software. The designer of numerous trading software programs including MetaStock—the most popular technical analysis program in the world—Achelis is an experienced investment analyst and trader. He has written influential articles on technical analysis and investment market timing, and has made regular radio and television appearances on national networks including CBS and CNBC.